On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

What is the Thing?

Limestone caves with spectacular showcase chambers.

A spiritual vortex among the red rocks in Sedona.

One of the largest, oldest, darkest, quietest motel rooms in the world.

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

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

Recycling meets art in this colorful barricade.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

This popular pilgrimage site offers a hole filled with holy healing dirt.

This is one really big nut.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A cave's rare beauty held a cavernous secret hidden underground.

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

A museum dedicated to the alleged Roswell Incident.

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

A simple plaque remembers a California island massacre that claimed more than 100 lives.

Built in 1895, this bed and breakfast was once a hospital that served an early 1900s Gold Rush boomtown.

The illuminating collection of L.A. street lights is run by the city and only opens one day per month.

The echoes of a railroad town that solemnly mark the end of the line.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

Experience Larry Spring's self-taught "common sense" laws of physics.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.