The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

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

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

Legends surround this jagged rock formation in the New Mexico desert.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

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

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

Home of the International Space Hall of Fame.

A museum dedicated to the alleged Roswell Incident.

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

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

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

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

Electrical pylon in the shape of Disney's beloved mouse.

The site of a gold-digging conquistador's bloody landing in the Americas.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

A Circus legend leaves an unexpected endowment.

A monument celebrating the idea of reaching inaccessible places.