One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The arch that celebrated the completion of the Lincoln and Victory highways.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

A man-made island in scenic San Francisco Bay.

Commonly referred to as the most photographed Victorian home in the United States.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Elvis's own personal tropical hideaway.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

This replica of the Greek structure is in the heart of Nashville.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A classic carnival ride that was carved to be untouchable.

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

A smoke stack so large, the Washington Monument could fit inside!

The old fire tower is one of the last of its kind in the United States.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

An entire town preserved as a historic landmark.

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."