For questions related to the city of Baku, the capital of Azerbaijan.

Baku is the capital and largest city of , as well as the largest city on the and of the region. 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. About 25 percent of all inhabitants of Azerbaijan live in Baku's metropolitan area.

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