This giant temperature attraction created some giant electric bills.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

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

An urban laboratory.

A geological mystery on Camelback Mountain.

The remains of the first punk club in L.A.

Celebrating the greatest pugilists the world has ever known.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The world’s first penitentiary, meant to be humane, drove men insane.

An offbeat angle on the ocean viewed through an antiquated lens.

The magic's in the hole!

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

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

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

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

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

A hand-built folk art installation covered with messages of God's love.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

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

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