Re: Mystery photo.

"Uyuni is best as home to the world's largest salt flat. But travelers can also visit the antique train cemetery where many mining trains were abandoned in the 1940's, when the industry collapsed. Uyuni is a city in the southwest of Bolivia. It primarily serves as a gateway for tourists visiting the world's largest salt flats.

Founded in 1890 as a trading post, teh town has a population of 10,460 (2012 official estimate). The town has an extensive street-market. It lies at the edge of an extensive plain at an elevation of 3,700 m (12,139 ft) above sea level, with mire mountains to the east."

From RYPN