Travel Destinations of Baku (Azerbaijan).
Azerbaijan is a not-so-touristy country between the Caspian Sea and Caucasus Mountains. Azerbaijan's economy depends on oil. Baku is the lowest capital city in the world (-28m).

Baku is the capital of Azerbaijan and and largest city in the region. Baku is 28 metres below sea level, which makes it the lowest (capital) city in the world below sea level.