This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

A lovely park home with a few interesting guests.

This former shopping outlet is now adorned with beautiful graffiti and murals.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

The graffiti-covered ruins of an abandoned trading post in the middle of the Navajo Nation.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

For those going through a life transition, a place to leave behind a piece of your former self.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

Inside this garden, visitors are offered a glimpse into how inhabitants of the region survived centuries ago.

This comprehensive collection features Native American artifacts dating back centuries.

Once disputed as the largest sundial in the world.

The first permanent memorial to a unique secret weapon of World War II.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

The remains of a boarding school designed to forcibly assimilate Native American children.

Two geoglyphs that are truly unique to North America.

This giant steer-skull edifice refuses to die.

The "Father of Arizona" tried to build a Zoroastrian fire temple on the hill where he's now buried.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

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

The world's largest military aircraft cemetery.