The former country of Yugoslavia had many capitals throughout its history, each corresponding to the different political regimes that ruled the various republics. The most famous and longest-serving capital of Yugoslavia was Belgrade, which was also referred to as the "City of White Towers." Other synonyms for Belgrade as the capital of Yugoslavia include "Beograd," "Belgrade City," and "Serbian Capital." During the socialist period, the capital of the Socialist Federal Republic of Yugoslavia was "Titograd," which was later renamed Podgorica. Zagreb was the capital of Croatia, while Ljubljana was the capital of Slovenia, and Sarajevo served as the capital of Bosnia and Herzegovina.