One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

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

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Dig for your own trilobites in this goldmine of invertebrates.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Outsider Art Community.

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

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

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

Legend says train robbers stashed their gold within the depths of this unusual cave.

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

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

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

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Miniature art that tells an enormous story.

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

The world's largest military aircraft cemetery.

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

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

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

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.