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

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

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

What is the Thing?

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

Limestone caves with spectacular showcase chambers.

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

A spiritual vortex among the red rocks in Sedona.

An urban laboratory.

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

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

The Magical World of George Phar Legler.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

America's only nuclear missile silo open to the public.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

See massive fossils that are over 200 million years old in northeastern Arizona.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Outsider Art Community.

A reproduction of earth's many biomes.

A self-built castle made by a mysterious man.

An homage to everyone's favorite prehistoric cartoon family.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."