Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

The fairy tale castle of the "fairy-tale king."

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Washington's iconic carousel has a nice piece of Civil Rights history.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The world’s largest concentrated solar plant generates as many problems as megawatts.

The drama of nature in full effect in this Nevada State Park.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

America's most famous piece of self-built architecture.

World-famous, Pink's still manages to keep its prized cult fetish status.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A museum dedicated to the history and exploration of both popular music and science fiction.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.