Most travellers who visit Uyuni are probably there for the famous Salar de Uyuni, the word's largest salt flat. Another tourist attraction of Uyuni though is the 'Cementerio de trenes', the antique train cemetery.
During the 1940's the mining industry collapsed, partly because of mineral depletion. Many trains were abandoned outside Uyuni, forming this mass train cemetery. The train cars and locomotives, many of them dating back to the early 20th century, are now rusted and eroded by the salt winds blowing over Uyuni.