The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

This collector's home is a constant work in progress.

One man's homage to the sun continues to grow like a glass fractal.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

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

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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

An urban laboratory.

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

This sanguine boulevard was named after a deadly cowboy bar fight.

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

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

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

An artificial crater field that trained astronauts for lunar exploration.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Beauty and history abound in this remote West Texas canyon.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

A Prada store in the West Texas desert that is never open for business.

Mysterious glowing orbs float through the desert night.

This old abandoned sign flickers to announce a motel that isn't even there.

Minimalist modern art on a repurposed military base in rural Texas.