East European Capital is a term used to describe the capital cities of countries located in Eastern Europe. The two most common East European Capitals are Kiev, the capital of Ukraine, and Sofia, the capital of Bulgaria. Both cities have a long history and are important cultural and economic centers in their respective countries. Kiev is the largest city in Ukraine and is known for its rich architecture and vibrant culture. Sofia is the 15th largest city in the European Union and is home to many historical monuments and landmarks.