Uyuni is a city in the southwest of Bolivia. It primarily serves as a gateway for tourists visiting the world's largest salt flats, the nearby Uyuni salt flat, the named called Lake Salar de Uyuni. The antique train cemetery is also one of the major tourist attractions of the area. It is located 3 km outside Uyuni and is connected to it by the old train tracks. The town served in the past as a distribution hub for the trains carrying minerals on their way to the Pacific Ocean ports. The train lines were built by British engineers who arrived near the end of the 19th century and formed a sizable community in Uyuni. The engineers were invited by British-sponsored Antofagasta and Bolivia Railway Companies, which is now Ferrocarril de Antofagasta a Bolivia. The rail construction started in 1888 and ended in 1892. The trains were mostly used by the mining companies. In the 1940s, the mining industry collapsed, partly due to the mineral depletion. Many trains were abandoned thereby producing the train cemetery. There are talks to build a museum out of the cemetery.