Brine that shines

It doesn't rain much here on Bolivia's Salar de Uyuni (only about five days a month during the rainy season), but when it does, the world's largest salt pan turns into a 4,000-square-mile mirror. Just a couple inches of standing rainwater on the Salar's salty crust can result in a glowing tableau like this. If one magical sunset leaves you wishing for more, you can catch a sunrise after staying at the nearby Palacio de Sal: a hotel built out of salt blocks harvested right from the vast flat.