This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

The first declared National Monument in the United States.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

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

Copenhagen's celebrated theme park and gardens.

A miniature city, once ruled by the Queen of the Netherlands.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A cemetery housing wild west legends in South Dakota.

The ghost town that ended up on Ebay.

Oldest building in California still in use.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Step inside Lucy, the world's largest "elephant."

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Elaborate tile work in this railway station tells the story of Portugal.