Famously misunderstood wonder of the ancient world

An ancient capital city that dates back 3,000 years old and harbors many surprises.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Handsomely crafted representations of our round planet.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

It was once the base for a series of domestic terror attacks.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

To find the "unicorns of the deep" you've got to go downstairs.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

The world's only known button museum.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The secret city built by the Manhattan Project.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

Developers built a Walmart around one family's plot and constructed a mausoleum in the parking lot.

An impressive collection is dedicated to the legendary beast.

Tour the sci-fi-esque reality of governmental disease management.