Kazan is the capital and largest city of the Republic of Tatarstan in Russia, with a population over one million. It is located at the confluence of the Volga and Kazanka rivers. Some of Kazan's most prominent features include the Kazan Kremlin, a UNESCO World Heritage Site, and the Suyumbike Tower, seen as the city's architectural symbol. Kazan has a long history and is an important educational and cultural center, with over 40 universities and various museums, theaters, and festivals held there annually. The city also serves as a major transportation hub in Russia.