Uyuni is mainly known for its salt flats and red lakes, but the Bolivian region has another unusual tourist attraction—a “cemetery” of abandoned, antique trains. In the early 19th century, plans were made to extend Uyuni’s transportation network and build more train tracks through the city, but the project was abandoned due to technical difficulties and tensions with local indigenous people. The trains were still used to transport minerals to port cities on the Pacific, but the minerals ran out in the 1940s, the miners left town, and the equipment was left sitting out in the desert. Time and salty winds have since corroded the trains, resulting in the Great Train Graveyard you see today.