Baku is the capital of Azerbaijan and the largest city in the country, located on the western shore of the Caspian Sea. It's a major cultural, economic, and political center with a rich history and culture, with evidence of human settlements dating back to the 4th millennium BCE. Baku is the world's lowest-lying national capital, sitting around 92 feet below sea level. 

Britannica

Baku | Location, History, Economy, Map, & Facts | Britannica

15 Mar 2024 — Baku, city, capital of Azerbaijan. It lies on the western shore of the Caspian Sea on the southern side of the Abseron Peninsula, ...

Baku | Best Time to Visit | Top Things to Do | Book Your Trip - Travel, Stay, Packages, Visa, Activities - MakeMyTrip

ESA Earth Online

Baku, Azerbaijan - Image of the Week - ESA Earth Online

Baku is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region.