Aktau formerly known as Shevchenko is one of the biggest cities of western Kazakhstan, and the country's only seaport on the Caspian Sea. It is located on the Mangyshlak Peninsula and is the capital of Mangystau Province. Aktau literally means "white mountain" in Kazakh, so named after the cliffs overlooking the sea. Population: 166,962 (2009 Census results); 143,396 (1999 Census results).
Aktau is known for its unique block address system. The streets of the city have no names, and all addresses in Aktau consist of three numbers: the micro district (block) number, the building number and the apartment number. This is because Aktau was originally planned as a camp for the workers of the oil industry