A tunnel with windows, so you don't miss out on the impressive views.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A house carved into a rock in the 1940s.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Rippling sand dunes frozen in the Arizona rock.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Outsider Art Community.

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

The remnants of a creative early method of wildfire prevention.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

Stairs often replace streets on the steep slopes of this old mining town.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

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

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

A mysterious "wedding cake" castle in the middle of the urban desert.

These free-roaming horses were once destined to disappear from the land.

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