The Absheron Peninsula is a peninsula in Azerbaijan. It is the location of Baku, the most populous city of the country, and the Baku Metropolitan Area, with its satellite cities Sumqayit and Khyrdalan. It extends 60 km (37 mi) eastward into the Caspian Sea, and reaches a maximum width of 30 km (19 mi). Azerbaijan's shape is often compared to an eagle, with the Absheron Peninsula forming its beak as it extends into the Caspian Sea.