An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

Home to the deepest rift anywhere on Earth.

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

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Visitors to this library are in for a real-world education in modernist architecture.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A beautiful geyser under environmental threat.

America's only nuclear missile silo open to the public.

What is the Thing?

An oil baron's wild paradise and the winner of an ill-fated air race.

Mysterious glowing orbs float through the desert night.

A Prada store in the West Texas desert that is never open for business.

A museum devoted entirely to the rattlesnakes and snake-related art.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A multi-storied adobe complex has been inhabited for more than a thousand years.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Secret North Korean passage discovered below the world's most dangerous border.