Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Towering basalt columns, a creation of fire and ice.

The first declared National Monument in the United States.

The rocks in this arid basin leave trails of movement behind them.

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

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

A beautiful geyser under environmental threat.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

A museum and tribute to a brave profession.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Experience a charming 1930's version of "infotainment."

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

This naturally-sourced hot spring is now home to a clothing-optional resort.

Community owned and operated, this property is home to a diverse set of nudists.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A bizarre house filled with an astounding array of collections.