Mardakan Quadrangular Castle (12th century) This imposing rectangular fortress was built in 1187–88 by order of Ahsitan I, son of Shirvanshah Manuchehr III, to commemorate a military victory. A carved inscription with his name and the date can still be seen on its main tower. The structure stands 22 metres tall and features five internal levels connected by a spiral staircase. It’s about a century younger — and 10 metres taller — than the nearby Round Castle. Tuba-Shakhi Mosque (15th century) Located in Mardakan village, this mosque is a rare example of Northern Azerbaijani religious architecture. Built in the 15th century, it was named after a woman who commissioned its construction — a testament to the important role women sometimes played in public life during that time.

One of the most famous and popular tourist places of the "eternal flame” in Azerbaijan is the mountain of Yanar Dag. Actually, it is rather a hill than a mountain, with natural gas burning on its slope from ancient times. Meter-long tongues of fire are licking the stratified earth approximately for 10 m in width, searing those who approached too close. People occupy the benches to watch the blazing hill in the evening, when its sight is most effective. Yanar Dag is located 25 km to the north from Baku. From the year 2007 Yanar Dag is declared a state-protected conservation area