Palace of the Shirvanshahs is a 15th-century palace built by the Shirvanshahs. The complex contains the main building of the palace, Divanhane, the burial-vaults, the shah's mosque with a minaret, Seyid Yahya Bakuvi's mausoleum (the so-called "mausoleum of the dervish"), south of the palace, a portal in the east, Murad's gate, a reservoir and the remnants of a bath house.

The Maiden Tower is a 12th-century monument in the Old City, Baku, Azerbaijan. The Maiden Tower houses a museum, which presents the story of the historic evolution of Baku city. It also has a gift shop.

Baku is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. Baku’s 2020 population was 2,293,700. Baku is located 28 metres (92 ft) below sea level, which makes it the lowest lying national capital in the world and also the largest city in the world located below sea level.