A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Single runway interrupted by a busy road that cuts across its middle.

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

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Seller of surplus nuclear research materials.

Legends surround this jagged rock formation in the New Mexico desert.

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

The largest self-built castle in the U.S., six decades in the making.

The highest bridge in America was built for an almost unnervingly small amount of money.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This hot dog-shaped diner has moved all around Colorado, but has never been to New York.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.