This Arkansas town is known for its gangster history, its healing waters, and now its brews.

The Ozarks' strangest dwelling.

Expertly restored pinball machines as far as the eye can see.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

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

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

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

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

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Limestone caves with spectacular showcase chambers.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

Home to the deepest rift anywhere on Earth.

A forensic lab dedicated to fighting crimes against wildlife.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.