Salar De Uyuni, Bolivia (© Kazuyoshi Nomachi/Corbis)

【October 3 2013】When the January rains accumulate on Salar de Uyuni in Bolivia, visitors get a rare treat: the salt flat turns into a giant mirror. The surface of this long-dried lake bed is a meters-thick crust of salt, with the brine below containing at least half the world's lithium reserves. Reaching up from the middle of the salt flat is the top of an extinct volcano, now known as the "island" Incahuasi.Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..