Fortified medieval tower house with lovely roof garden.

Go inside to really appreciate this 500-year-old technological masterpiece.

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

The land is home to swimming ponies and a legendary 18th-century treasure.

"X" marks the spot of an echo chamber in the middle of a plaza.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

The fairy tale castle of the "fairy-tale king."

The prototype for all Nazi concentration camps.

Go surfing on this urban wave, "hacked" by local surfers.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Once the path of a railway tunnel, now home to thousands of glowing insects.

The world's tallest statue of an American hero.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

A tribute to Ponce de Leon's supposed quest for eternal youth.

Location of a reliquary containing bone fragments of 18 saints.

Once the home of a hermetic monk, this cave now houses a small church.

The final resting place of New Orleans' most famous voodoo priestess.

The second oldest continuously operating bar in Louisiana.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

New Orleans' famous cemetery, located on the site of a former race track.

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

Beer lover's can-covered house.