http://www.popsci.com/military-aviation-space/gallery/2008-02/earth-youve-never-seen-it

In the center of the Australian continent, Uluru, or Ayers Rock, rises 1,142 feet out of the dry plains, providing shade and water to plants and animals. The area’s sparse rainfall trickles down the rock formation and drains out slowly to form little springs where plants can grow. Small amounts of oxidized iron embedded in the sandstone give Uluru its famous shifting color as the sun passes over it. At sunset, the formation appears to glow red. In 1987, the rock along with the surrounding Uluru-Kata Tjuta National Park was designated a World Heritage Site.