Default HTG hotel image

Search Hotels in Jongno-gu, Seoul

  • Change your mind

    Book hotels with free cancellation
  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
  • Be picky

    Search almost a million properties worldwide

Check prices for these dates

Filter by

Guest rating
Guest rating
Star rating

Our top choices for Jongno-gu hotels

1. UH Suite Seoul Insadong

UH Suite Seoul Insadong
3.0 star property
Jongno-gu
2.0 out of 10, (1 review)
"์˜คํ”ˆํ›„ ์ •๋น„๊ฐ€ ์ œ๋Œ€๋กœ ๋˜์–ด์žˆ์ง€์•Š์•„ ํ•˜์ž๋ณด์ˆ˜(๋นจ๊ฐ„์ƒ‰ํ™”์‚ดํ‘œ์Šคํ‹ฐ์ปค)๊ฐ€ ๊ทธ๋Œ€๋กœ ๋ถ™์–ด์žˆ๋Š”์ฑ„๋กœ ์ˆ™๋ฐ•์„ํ–ˆ๊ณ  ์ƒค์›Œ๊ธฐ ํ—ค๋“œ๋กœ๋Š” ๋ฌผ์ด๋‚˜์˜ค์ง€์•Š์•„ ์ƒค์›Œ์‹œ ์•„์ฃผ ๋ถˆํŽธํ–ˆ๊ณ  ์ˆ˜๊ฑด๊ณผ ๊ฐ€์šด์€ ๋จผ์ง€์™€ ์ง€์ €๋ถ„ํ•œ ๋ฌผ์งˆ์ด ์–ด๋งˆ์–ด๋งˆํ•˜๊ฒŒ ๋ฌป์–ด์žˆ์–ด ์•„์ฃผ๋ถˆํŽธํ–ˆ์Šต๋‹ˆ๋‹ค ์ง์›๋“ค์€ ๋Œ€์ฒด๋กœ ์นœ์ ˆํ–ˆ์œผ๋‚˜ ๋ถˆ๋งŒ์„ ์–˜๊ธฐํ•˜๋ฉด ๊ทธ์—๋Œ€ํ•œ๋ฐ˜์‘๊ณผ ์กฐ์น˜๋Š” ์—†์—ˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ถ€๋ถ„๋งŒ ์กฐ์น˜๋˜๋ฉด ํ›Œ๋ฅญํ•œ ํ˜ธํ…”์ผ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๋ถ€๋”” ๊ด€๊ณ„์ž๊ฐ€ ์ด ๊ธ€์„ ํ™•์ธํ•˜์—ฌ ์‹œ์ •์กฐ์น˜ํ•˜๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค"
South Korea
Joonwon
The price is Rp1.805.753
Rp1.986.328 total
includes taxes & fees
22 Jun - 23 Jun
UH Suite Seoul Insadong

2. NINE TREE BY PARNAS SEOUL INSADONG

NINE TREE BY PARNAS SEOUL INSADONG
4.0 star property
Jongno-gu
9.2 out of 10, Wonderful, (2,062 reviews)
"A beautiful hotel with nice spacious rooms."
United States
Collin
The price is Rp1.923.113
Rp2.115.424 total
includes taxes & fees
30 Jun - 1 Jul
NINE TREE BY PARNAS SEOUL INSADONG

3. N285 Hotel Insadong

N285 Hotel Insadong
2.0 star property
Jongno-gu
8.8 out of 10, Excellent, (672 reviews)
"Close to everything and friendly staff."
United States
Myrelle
The price is Rp1.810.498
Rp1.991.548 total
includes taxes & fees
24 Jun - 25 Jun
N285 Hotel Insadong

4. AMID HOTEL SEOUL

AMID HOTEL SEOUL
4.0 star property
Jongno-gu
9.2 out of 10, Wonderful, (1,117 reviews)
"Excellent stay, perfect location, nice spacious room! "
United States
Sarah
The price is Rp2.144.011
Rp2.358.412 total
includes taxes & fees
8 Jul - 9 Jul
AMID HOTEL SEOUL

5. Somerset Palace Seoul

Somerset Palace Seoul
4.0 star property
Jongno-gu
8.8 out of 10, Excellent, (1,150 reviews)
"Excellent hotel, staff, breakfast, location"
Canada
David
The price is Rp2.263.122
Rp2.489.434 total
includes taxes & fees
29 Jun - 30 Jun
Somerset Palace Seoul

6. ibis Ambassador Seoul Insadong (Newly renovated in 2025)

ibis Ambassador Seoul Insadong (Newly renovated in 2025)
4.0 star property
Jongno-gu
8.8 out of 10, Excellent, (360 reviews)
"Great location, convenient area to stay in"
United States
brooke
The price is Rp1.524.630
Rp1.677.093 total
includes taxes & fees
23 Jun - 24 Jun
ibis Ambassador Seoul Insadong (Newly renovated in 2025)

7. Shilla Stay Gwanghwamun Myungdong

Shilla Stay Gwanghwamun Myungdong
4.0 star property
Jongno-gu
8.8 out of 10, Excellent, (1,323 reviews)
"Good location, well connected"
United Kingdom
Ratna
The price is Rp2.417.968
Rp2.659.764 total
includes taxes & fees
8 Jul - 9 Jul
Shilla Stay Gwanghwamun Myungdong

8. 4rest Stay Jongno

4rest Stay Jongno
3.0 star property
Jongno-gu
8.0 out of 10, Very good, (2 reviews)
"Everything was there. Transit station, night life, shopping market, restaurants and more. Breakfast was self served. Laundry machines. Staff was very helpful. We locked our keys in the room and no one was around. But we followed the instructions on the door to contact them and the got us a key through the kiosk. Only weird thing for us was the toilet is in the shower. Other than that it was cool. Thank you for the experience"
United States
Bonaparte
The price is Rp1.310.302
Rp1.441.332 total
includes taxes & fees
11 Jun - 12 Jun
4rest Stay Jongno

9. Orakai Daehakro Hotel, BW Signature Collection

Orakai Daehakro Hotel, BW Signature Collection
3.5 star property
Jongno-gu
9.4 out of 10, Exceptional, (728 reviews)
"Within 5 min walking distance to Changyeonggung palace."
United States
Woosung
The price is Rp2.145.166
Rp2.359.686 total
includes taxes & fees
5 Jul - 6 Jul
Orakai Daehakro Hotel, BW Signature Collection

10. Orakai Insadong Suites

Orakai Insadong Suites
4.0 star property
Jongno-gu
9.0 out of 10, Wonderful, (1,611 reviews)
"It is just great Hotel in center of Seoul"
United States
jae
The price is Rp3.037.348
Rp3.341.083 total
includes taxes & fees
1 Jul - 2 Jul
Orakai Insadong Suites

11. HOTEL LETS ABOVE

HOTEL LETS ABOVE
3.0 star property
Jongno-gu
10.0 out of 10, Exceptional, (2 reviews)
"the view was very nice and location of the hotel is excellent for people who like to walk in myeongdong! staff was nice and made sure we were comfortable and okay in our room"
Canada
Laurie
The price is Rp1.217.272
Rp1.338.999 total
includes taxes & fees
10 Jun - 11 Jun
HOTEL LETS ABOVE

12. Hotel Sunbee Insadong

Hotel Sunbee Insadong
3.0 star property
Jongno-gu
9.4 out of 10, Exceptional, (1,005 reviews)
"Wonderful hotel - very convenient for public transportation and many attractions within walking distance"
United States
Marita
The price is Rp2.356.011
Rp2.591.612 total
includes taxes & fees
28 Jun - 29 Jun
Hotel Sunbee Insadong

13. Hotel Rawa

Hotel Rawa
2.0 star property
Jongno-gu
The price is Rp1.683.691
Rp1.852.054 total
includes taxes & fees
22 Jun - 23 Jun
Hotel Rawa

14. Moxy Seoul Insadong

Moxy Seoul Insadong
3.5 star property
Jongno-gu
9.0 out of 10, Wonderful, (535 reviews)
"Great hotel, lots of room, clean, perfect location"
Germany
Lukas Bernhard
The price is Rp2.382.234
Rp2.620.457 total
includes taxes & fees
5 Jul - 6 Jul
Moxy Seoul Insadong

15. Ondo Hotel and Spa Seoul Jongro

Ondo Hotel and Spa Seoul Jongro
3.0 star property
Jongno-gu
8.2 out of 10, Very good, (119 reviews)
"Great location, clean room, great staff. The only issue I had was the odor in the bathroom. Otherwise everything else was great."
United States
SOL
The price is Rp1.407.686
Rp1.548.455 total
includes taxes & fees
24 Jun - 25 Jun
Ondo Hotel and Spa Seoul Jongro

16. Hotel Tradiup by the Designers

Hotel Tradiup by the Designers
3.0 star property
Jongno-gu
9.2 out of 10, Wonderful, (27 reviews)
"Great breakfast, good amenities, wonderful location!"
United States
Rich
The price is Rp1.767.867
Rp1.944.654 total
includes taxes & fees
1 Jul - 2 Jul
Hotel Tradiup by the Designers

17. MJ HOTEL JONGNO

MJ HOTEL JONGNO
3.0 star property
Jongno-gu
8.6 out of 10, Excellent, (161 reviews)
"Very friendly staff and close interesting places in Seoul"
United States
jae Kyun
The price is Rp1.039.176
Rp1.143.094 total
includes taxes & fees
10 Jun - 11 Jun
MJ HOTEL JONGNO

18. PungGyeong, Korea Traditional House

PungGyeong, Korea Traditional House
2.5 star property
Jongno-gu
9.8 out of 10, Exceptional, (12 reviews)
"Nice and clean"
United States
Taehwan
The price is Rp4.209.210
Rp4.630.131 total
includes taxes & fees
10 Jun - 11 Jun
PungGyeong, Korea Traditional House

19. Hanok Hotel DAAM

Hanok Hotel DAAM
3.0 star property
Jongno-gu
9.2 out of 10, Wonderful, (366 reviews)
"Fantastic place to stay in Seoul! Comfortable bed, great Korean hanok design, friendly staff, good breakfast and wonderful location."
Canada
Garth Alan
The price is Rp1.629.006
Rp1.791.907 total
includes taxes & fees
1 Jul - 2 Jul
Hanok Hotel DAAM

20. The Prima Hotel Jongno

The Prima Hotel Jongno
3.5 star property
Jongno-gu
9.2 out of 10, Wonderful, (936 reviews)
"Great location"
United States
Akiva Houminer
The price is Rp2.115.745
Rp2.327.320 total
includes taxes & fees
5 Jul - 6 Jul
The Prima Hotel Jongno
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Compare popular hotels in Jongno-gu

Property
Property class
Guest rating
Breakfast included
Pool
Spa
Pet-friendly
WiFi included
Lobby
Hotel Atrium Seoul Jongno
3.5 star property
8.6
Excellent
306 reviews
View
Family Room, 2 Double Beds, Courtyard View | Garden view
HanokHanok
2.0 star property
9.8
Exceptional
18 reviews
View
Hillo Jae | Courtyard view
Nostalgia Hanok Hotel
3.0 star property
10.0
Exceptional
12 reviews
View
Minibar, iron/ironing board, free WiFi, bed sheets
PungGyeong, Korea Traditional House
2.5 star property
9.8
Exceptional
12 reviews
View
Interior
Seoul DDJ STAY
2.0 star property
9.8
Exceptional
12 reviews
View

Where to stay in Jongno-gu

Find the best Jongno-gu areas for the activities you enjoy most. Learn more about Jongno-gu
Learn more about Jongno-gu

Myeong-dong

This central Seoul shopping district is the place to buy quality brand products and stop for a bite to eat.

Gangnam-gu

Made world-famous by a catchy 2012 K-pop song with quirky dance moves, this is still Seoulโ€™s most talked about neighborhood today.

Hongdae

This is Seoul at its most youthful and liveliest. Come here for cafรฉs, bars, clubs, cinemas and boutiques.

Dongdaemun-gu

You might enjoy the shopping while in Dongdaemun-gu. Gyeongdong Market is a notable sight, and you can get around town at Yongdu Station or Jegi-dong Station to see more of the city.

Insa-dong

This central Seoul district offers shopping and culture with traditional Korean art, antiques, and crafts.

Top Jongno-gu Hotel Reviews

Find out more about Jongno-gu

Top reasons to visit Jongno-gu

  • Cultural Immersion: Jongno-gu offers a deep dive into Korea's rich history with ancient architecture and historic sites.
  • Vibrant Markets: Explore bustling public markets and shopping areas, providing a taste of local life and vibrant city energy.
  • Stunning Parks: Enjoy tranquil urban parks, perfect for relaxation amidst the city's dynamic atmosphere.
  • Family-Friendly Activities: The district caters to families, offering diverse attractions suitable for all ages.
  • Charming Accommodation: A variety of lodging options are available, from modern hotels to quaint guesthouses, ensuring comfort and convenience.

Find great hotels near Jongno-gu

Discover a delightful range of accommodation options in Jongno-gu, Seoul, catering to every type of traveller. From modern hotels to charming guesthouses, youโ€™ll find versatile lodgings ideal for shopping enthusiasts, business travellers, and those seeking a pet-friendly stay. Explore accessible hotels and various activities that make your visit memorable, ensuring a perfect blend of comfort and convenience during your time in this vibrant district.

  • LOTTE City Hotel Myeongdong: Nestled in the vibrant shopping district, LOTTE City Hotel Myeongdong is a 4-star accommodation perfect for those who adore retail therapy and business convenience. At a mere 966m from Jongno-gu, this contemporary hotel offers a chic atmosphere with modern amenities tailored for the savvy traveller. Guests can indulge in well-appointed rooms featuring free Wi-Fi, a fitness centre, and an on-site restaurant serving delightful cuisine. Its prime location makes it a gateway to the bustling streets of Myeongdong, ensuring that guests experience the best of Seoul's shopping and dining.
  • ENA Suite Hotel Namdaemun: This stylish 4-star hotel, located 1.3km from Jongno-gu, is an excellent choice for business travellers seeking comfort and efficiency. ENA Suite Hotel Namdaemun boasts spacious suites equipped with kitchenettes, a business centre, and complimentary high-speed internet, making it ideal for both short and extended stays. The hotelโ€™s sleek design and modern furnishings create a relaxed ambience, while its proximity to key business districts ensures you remain connected to the pulse of the city.
  • Lotte Hotel Seoul: A prestigious 5-star establishment located only 805m from Jongno-gu, Lotte Hotel Seoul offers a luxurious experience tailored for families and golf enthusiasts. This hotel features exceptional amenities including an indoor golf simulator, a dedicated children's area, and babysitting services, making it perfect for guests of all ages. With elegant rooms and a range of dining options, Lotte Hotel Seoul promises a sophisticated stay enriched by golf-themed activities and family-friendly services, ensuring a memorable vacation.

Where to stay near Jongno-gu

Jongno-gu is a vibrant district in Seoul, perfect for family and culture-themed vacations. Visitors can immerse themselves in Korea's rich history, exploring stunning architecture and ancient sites under abundant sunshine. The autumn season paints the scenery with vibrant hues, enhancing the district's charm. Nearby neighbourhoods offer a friendly atmosphere, making it easy to experience the urban and trendy vibes of the city. Discover the essence of Korea in this culturally rich area.

  • Seoul: As the vibrant capital of South Korea, Seoul is a sprawling metropolis that seamlessly blends modernity with tradition. Jongno-gu, situated within its heart, offers visitors a rich tapestry of experiences. The city's atmosphere is never truly seasonal, with peaks in visitor numbers occurring in August and from October to November. Travellers flock to Seoul for family, city-themed, and business experiences, exploring bustling shopping areas, public markets, and shopping centres. Key attractions include picturesque parks, marinas, and historical precincts, making it an ideal starting point for any adventure.
  • Myeong-dong: Located a mile from Jongno-gu, Myeong-dong is a bustling neighbourhood renowned for its vibrant shopping scene. This area attracts visitors year-round, with peak seasons in March to April and September. Myeong-dong is a haven for family and business travellers alike, featuring an array of shopping areas, public markets, and shopping centres. Its local highlights include lush parks and historic sites that provide a glimpse into Seoul's rich heritage, making it a must-visit for those looking to immerse themselves in the city's lively atmosphere.
  • Insa-dong: Just 644m from Jongno-gu, Insa-dong is a charming neighbourhood that captures the essence of traditional Korea. Like its neighbouring areas, Insa-dong enjoys consistent traveller interest throughout the year, peaking in March to April and September. Here, visitors can experience family, city-themed, and business activities, with shopping areas and public markets lining the streets. Insa-dong is also home to historic sites and quaint villages, offering a unique blend of culture and commerce that enchants all who wander its streets.

Things to do near Jongno-gu

Jongno-gu presents an ideal destination for family, city, and culture-themed vacations. Visitors can explore vibrant shopping areas and bustling public markets, offering a taste of local life. Key activities in Seoul include discovering the best trails and immersing oneself in the rich cultural heritage of the district. Jongno-gu promises a delightful blend of experiences that cater to various interests, making it a captivating spot for tourists.

Shopping

Discover the vibrant Namdaemun Market, located 1.4km from Jongno-gu, offering a bustling atmosphere perfect for souvenirs. Just 1.6km away, Lotte Outlets Seoul Station combines shopping with entertainment, while Shinsegae Shopping Center, also 1.4km distant, provides a more refined retail experience.

Recreation

Explore Noeul Park for a serene escape, surrounded by nature, perfect for relaxation and gentle strolls. For a more active experience, visit Seoul Olympic Stadium, where you can soak up the energetic atmosphere of sports events and enjoy various athletic activities.

Adventure

Experience the thrills at SeaLaLa Spa & Water Park, a vibrant waterpark offering fun for the whole family, located 9.7km from Jongno-gu. Take a scenic ride on the Namsan Cable Car, situated 1.6km away, for breathtaking views and an exhilarating outdoor adventure.

Nightlife

In Jongno-gu, the nightlife buzzes with energy at venues like the adventure-filled Hannam Bowling Center and Kokkiri Bowlingjang. For a taste of culture and romance, the Myeongdong Nanta Theatre offers an unforgettable theatrical experience, all within a convenient distance from the heart of the district.

*Distances are measured in a straight line; actual driving distances may vary depending on the route.

Booking tips and Expedia advantages for Jongno-gu

To save money on your trip to Jongno-gu, consider visiting between January and March, when accommodation prices are at their lowest. Book your hotel about a month in advance to secure the best deals, particularly on Wednesdays, which are the cheapest days to stay. Use Expediaโ€™s search tool to filter by budget and preferences, and look for last-minute deals. Combine your hotel, flights, and activities into a package deal for additional savings. Exploring the area on foot is also a great way to cut transport costs while enjoying the sights.

  • The most and least expensive months on average to stay in a hotel: The cheapest months to stay around Jongno-gu are January to March, where the prices are slightly lower. This is in comparison to April, October and December, where prices are slightly higher.
  • The best time to book a hotel: Book your hotel around Jongno-gu about 1 month out to secure some of the cheapest prices. If you're the spontaneous type, Expedia's last minute deals and discounts are indicated via the green label below the price.
  • The most and least expensive days on average to stay in a hotel: The least expensive day to stay around Jongno-gu is Wednesday. The most expensive day to stay around Jongno-gu is Saturday.
  • Find cheap hotels on Expedia: Utilise Expediaโ€™s search tool to refine your preferences, including your budget, desired location, and the type of accommodation you prefer. To uncover the most affordable prices and offers, arrange the price filter from lowest to highest.
  • Consider bundling your trip: You can save money by combining your Jongno-gu hotel reservation with your flights and activities through an Expedia package deal.

Find the best attractions in and around Jongno-gu

Jongno-gu is ideal for family, city, and culture-themed holidays, offering a rich tapestry of experiences. Visitors can explore an array of attractions, including fascinating museums, tranquil urban parks, and historic gate arches. This vibrant district caters to those seeking cultural immersion, family-friendly activities, and a genuine city experience, making it a perfect destination for diverse travellers.

  • Gyeongbokgung Palace: Immerse yourself in Korea's rich history at Gyeongbokgung Palace, the largest of the Five Grand Palaces. Marvel at its stunning architecture and beautiful gardens, and witness the changing of the guard ceremony, which showcases traditional culture.
  • N Seoul Tower: Enjoy panoramic views of Seoul from N Seoul Tower, a modern icon of the city. Take a cable car ride up and visit the observation deck for breathtaking vistas, especially at sunset when the city lights up.
  • Seoul City Hall: Explore the impressive architecture of Seoul City Hall, a blend of modern and traditional design. This civic landmark hosts exhibitions and events, offering insights into the city's culture and governance.

Best time to go to Jongno-gu

The best time to visit Jongno-gu can depend on the weather and when visitor numbers rise and fall. The hottest average temperature around Jongno-gu falls in August, when visitor numbers are average and weather is mostly sunny with frequent rain. The coolest average temperature around Jongno-gu falls in January, visitor numbers are average and weather is mostly sunny with no rain.

calendarCalendar MonthtemperatureTemperaturerainPrecipitationmostlyCloudinessoccupationOccupancypricePricing
January27.3ยฐF (-2.6ยฐC)No RainMostly SunnyAverageSlightly Low
February32.5ยฐF (0.3ยฐC)No RainMostly SunnySlightly LowSlightly Low
March43.2ยฐF (6.2ยฐC)No RainMostly SunnyAverageSlightly Low
April53.4ยฐF (11.9ยฐC)Light RainMostly SunnySlightly HighSlightly High
May63.7ยฐF (17.6ยฐC)Light RainMostly SunnyAverageAverage
June72.1ยฐF (22.3ยฐC)Light RainMostly SunnyAverageAverage
July77.4ยฐF (25.2ยฐC)Frequent RainMostly CloudySlightly HighAverage
August78.4ยฐF (25.8ยฐC)Frequent RainMostly SunnyAverageAverage
September70.5ยฐF (21.4ยฐC)Light RainMostly SunnySlightly HighAverage
October59.2ยฐF (15.1ยฐC)Light RainMostly SunnySlightly LowSlightly High
November45.7ยฐF (7.6ยฐC)Light RainMostly SunnySlightly LowAverage
December30.7ยฐF (-0.7ยฐC)No RainMostly SunnyAverageSlightly High

The nearest major airports for your trip to Jongno-gu

When visiting Jongno-gu, Seoul, you have several airport options. Gimpo International Airport (GMP) is situated 16.1km away, with nearby hotels such as the 5-star Lotte Hotel Seoul and Fairmont Ambassador Seoul, both offering various transport services. Incheon International Airport (ICN) is located 48.3km from Jongno-gu, featuring top accommodations like the Grand Hyatt Incheon and Paradise City, both just 3.2km away, providing convenient access. Lastly, Wonju Airport (WJU) is 88.5km distant, with options like the 4-star Hotel Inter Burgo Wonju. These airports offer a range of transport services, ensuring easy access to your chosen hotels.

Frequently asked questions

What is Jongno-gu like?
Jongno-gu is an historic neighbourhood known for its array of dining options and major shopping area. Looking for sights you might find in a travel guide about Jongno-gu? Consider a visit to Bukchon Hanok Village while you're in the neighbourhood.
Where is the best hotel for a stay in Jongno-gu?
Based on our traveller data, Shilla Stay Gwanghwamun Myungdong is one of the top choices for your stay in Jongno-gu. This hotel is a short 5-minute walk from Insa-dong, and it offers a restaurant and a health club. Other good choices for your stay in the area include NINE TREE BY PARNAS SEOUL INSADONG and Four Seasons Hotel Seoul.
How many hotels are there in Jongno-gu?
Expedia has 328 hotels and other accommodation options in Jongno-gu to choose from, making this an ideal home base for exploring the greater Seoul area.
If I need to cancel my hotel reservation in Jongno-gu, will I receive a refund?
Yes, you'll find most hotel bookings are fully refundable provided that you cancel before the hotel's cancellation deadline, which often is within 24-48 hours of the scheduled arrival. If you booked a non-refundable reservation, you may still be able to cancel and be given a refund within 24 hours of booking. Add your dates and click on "Search", then use the filter option "fully refundable" to view the best deals available in Jongno-gu.
What is there to do around this Seoul neighbourhood?
Attractions such as National Museum of Korean Contemporary History, Seoul National University Hospital and Ilmin Art Museum highlight Seoul's cultural scene. Bukchon Hanok Village and Sejong Cultural Center are also a couple of places to visit in the neighbourhood. Favourite places to visit in the surrounding area include Myeongdong Street, Namdaemun Market and N Seoul Tower. While you're out sightseeing, Embassy of Vietnam in Korea and Embassy of Ireland are a couple of additional sights to visit in Seoul.
How can I get around Jongno-gu and the greater Seoul area?
If you want to see more of the city, Gwanghwamun Station is the closest metro stop. Others nearby include Jonggak Station and Gyeongbokgung Station.