Moscow is the capital city of Russia, located on the Moskva River, with over 12 million inhabitants. It is known for its historic buildings like Red Square, the Kremlin, and Moscow Metro. Red Square has been the center of Russian government ceremonies and contains landmarks such as St. Basil's Cathedral and Lenin's Mausoleum. The Kremlin, a medieval fortress, is located in the central part of Moscow and houses government buildings and Orthodox cathedrals. The Moscow Metro, opened in 1935, is famous for its ornate stations decorated with art, sculptures, and historical themes.