The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

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

This is one really big nut.

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

This bird-shaped rock formation defies gravity, time, and classification.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

A frozen oasis lies beneath the scorching New Mexico desert.

This sparsely populated town offers a look back in time.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

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

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

"I did this all while you were watching TV."

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Semi-recognized center of the world, with many oddities.