Moon rise over West Mitten Butte in Monument Valley.
Monument Valley sunrise from The View Hotel.
Silhouette of caribou antler with skull at sunset in Northwest Territories Canada.
Bull elk crossing the Madison River at sunrise in Yellowstone National Park Wyoming.
This Polar Bear is walking along the shore of the Beaufort Sea near Kaktovik Alaska at sunset.
Star trails with the dark night sky in the Kalahari National Park, South Africa.
Quiver tree at sunset in Kokerboom Forest, Namibia.
Grizzly bear silhouette at sunrise walking across a dew-covered field in Lake Clark National Park Alaska.
Composite image of a polar bear silhouette at sunset and aurora reflected in Beaufort Sea, Kaktovik Alaska.
