This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Abandoned silver mine strewn with wrecked and twisted structures.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

See massive fossils that are over 200 million years old in northeastern Arizona.

When ecosystems collide in the arid Southwest.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

What is the Thing?

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

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

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

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

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

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

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

The second oldest continuously operating bar in Louisiana.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Ghost town with a beer-drinking goat for mayor.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Witness to many historic moments in early Texas history.

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

Turning night into day in Victorian-era Austin to thwart a serial killer.