For the first time at the beginning of V century in Byzantine manuscripts that described the cities of Caucasian Albania, there is mentions about "a fire from submarine rising". It is assumed that that was Baku. Baku is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. It is located on the southern shore of the Absheron Peninsula, which projects into theCaspian Sea. The city is the scientific, cultural and industrial center of Azerbaijan. Many sizeable Azerbaijani institutions have their headquarters there, including SOCAR, one of the world's top 100 companies and others. The Baku International Sea Trade Port, sheltered by the islands of the Baku Archipelago to the east and the Absheron Peninsula to the north, is capable of handling two million tons of general and dry bulk cargoes per year. Baku hosted the 57th Eurovision Song Contest in 2012 and will host the 2015 European Games.
Mohammed Mosque built in 1078-1079, the Maiden's Tower built in the XII century,  Sabail castle now under water in Baku bay built in 1232-1235, the Old City complex, Bukhara caravanserai (XIV century), Moltanı caravanserai (XV century) and other architectural monuments are symbols of the city of Baku.
There are a lot of hotels to accommodate tourists in the city.