Saint Petersburg was established in 1703 as the capital of the Russian Empire and remained so until 1918 after the revolution. It has undergone several name changes throughout history. The Hermitage Museum, located in Saint Petersburg, is one of the largest art museums in the world and occupies five contiguous palaces along the Neva River, including the Winter Palace which was formerly the official residence of Russian czars. Saint Petersburg is known for its architecture, canals, and several palaces, churches, and theaters spread throughout the city.