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

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

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

Home to items never before seen by the public.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This shallow cave got its name from copious amount of human bones found inside.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Strange physical sensations and optical contradictions keep visitors coming back for more.

Community owned and operated, this property is home to a diverse set of nudists.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

The honor of highest point in Michigan was almost given to the wrong peak before this mountain won out by 11 inches.

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

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

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

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

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

The largest source of fossilized insects anywhere.

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.