NatGeo: Best Wallpapers 2012 - Horses, Mongolian Steppe Photograph by Mark Leong, National Geographic An ocean of green, Mongolia is the most sparsely populated country in the world, with just under three million people in a landmass larger than Alaska.

Vancouver Island

In typical West Coast style, a beautiful sunset lights the shores of the Pacific Ocean on Vancouver Island. This scenic coastal spot is South Beach in the popular Pacific Rim National Park near Tofino.

Bongani Mountain Lodge  Mpumalanga, South Africa

Bongani Mountain Lodge Mpumalanga, South Africa

Lake Baikal USSR

Lake Baikal, Russia - Lake Baikal in southern Siberia is not only the deepest and oldest lake in the world (more than meters deep), it holds almost 20 percent of the world's freshwater supply.