A river runs through it at Horseshoe Bend in Glen Canyon National Recreation Area in southeastern Utah.

A Humpback Whale takes center stage in Alaska's Kenai Fjords National Park.

The moon shines on the sand at Imperial Sand Dunes Recreation Area in California.

Vibrancy comes to mind in this autumn foliage pallet at Bering Land Bridge National Preserve in Alaska.

A bison beds down in a snowstorm at Rocky Mountain Arsenal National Wildlife Refuge in Colorado.

A Florida thunderstorm soars over the slow moving river of water in Everglades National Park.

The gates to 8.4 million acres of wild, undeveloped wilderness are wide open at Gates of the Arctic National Park in Alaska.

Lightning crashes into the cavernous Grand Canyon National Park in Arizona.

A rainbow arcs over Black Canyon as the sun rises at Gunnison National Park in Colorado.

A rider gallops on a horse in a scene that could have come 150 years ago on the same Pony Express Trail in Wyoming.

Pres. Obama's second inaugural, as seen from the Washington Monument.

Candle lanterns burn at the Wall of Names in honor of those killed when United 93 was forced down in Shanksville, Pennsylvania, on Sept. 11, 2001.

What looks like a pristine Caribbean beach is actually White Sands National Monument in southern New Mexico.

A small pack of wolves roams a road in Yellowstone National Park in Wyoming during a snowstorm.