Chile (officially The Republic of Chile) narrowly stretches along the southern half of the west coast of South America. The bordering countries are Bolivia, and Peru in the north and over the Andes, to the east, lies Argentina. Chile has over 5,000 km (3,100 mi) of coast on the South Pacific Ocean. Santiago, its capital, sits in a valley surrounded by the Andes and Chilean Coast Range mountains. The city’s Plaza de Armas, founded in 1541, contains neoclassical landmarks and the National History Museum.