Description: The Lena River, some long, is one of the largest rivers in the world. The Lena Delta Reserve is the most extensive protected wilderness area in Russia. It is an important refuge and breeding grounds for many species of Siberian wildlife.
Planet fantastic: Stunning images of the world's most breathtaking landscapes
The Outlandish Landscapes The Wave in Utah – Carved rock eroded into a wave-like formation made of jurrasic-age Navajo sandstone that is approximately 190 million years old. (Photo by Steffen and Alexandra Sailer/Ardea/Caters News)