The capital of Serbia and Montenegro, also known as the former Yugoslavia, has undergone several name changes throughout history. It was known as Belgrade during the Yugoslav era, and when Serbia and Montenegro were united, it became the capital of the new country. Other synonyms for the capital include Beograd, which is the Serbian name for the city, and Serbian Athens, which is a nickname given to Belgrade due to its historical and cultural significance. Additionally, it's often referred to as the White City, which means "the white city," due to the color of the city's architecture. Another synonym for the capital is the City of Rivers, which refers to Belgrade's prominent location at the confluence of the Danube and Sava rivers.