The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

The highest point in Texas is capped by a big silver pyramid.

A little bit Wonkatania, a little bit pink elephant.

A medieval castle in the middle of rural Texas.

An emerald-green grotto just a short trip from Austin.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The kind of mixed-up place that drives archaeologists crazy.

Ruins of a historic medical facility sits eerily by the water.

A World War II officers' club features Old West murals painted by German POWs.

Local arts organization founded in a former church.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.

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

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The Grand Canyon of Texas.

A picture-perfect town, perfect for blowing up.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

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

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

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

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

The secret city built by the Manhattan Project.