A Kremlin is a fortified complex found in many Russian cities, with the most famous being the Moscow Kremlin. These structures typically include palaces, cathedrals, and government buildings, surrounded by walls and towers. The term "Kremlin" translates to "fortress" in Russian and signifies a historical center of power. The Moscow Kremlin serves as the official residence of the President of Russia and is a UNESCO World Heritage site. It features notable landmarks such as the Cathedral of the Assumption and the Ivan the Great Bell Tower. Kremlins are significant for their architectural beauty and historical importance in Russian culture.