Coordinates: 55° 45′ 8″ N, 37° 37′ 24″ E
Moscow is the capital and the most populous city of Russia. It is located by the Moskva River in the Central Federal District, in the European part of Russia. Moscow sits on the junction of three geological platforms. Historically, it was the capital of the former Soviet Union, Russian Empire (for three years in 1728-30), Tsardom of Russia and the Grand Duchy of Moscow. It is the site of the Moscow Kremlin, one of the UNESCO World Heritage Site in the city, which serves as the residence of the President of Russia. The Russian parliament (the State Duma and the Federation Council) and the Government of Russia also sit in Moscow.