A strange mark in the stone fence of a cemetery fabled to have been made by the Devil himself.

This network of narrow, medieval passages has the most delightful name.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

The grave of Mary Nasson is shrouded by witchy legends.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

One New Hampshire alleyway has become home to a public gallery of feline art.

This massive solar system model is sprawled out across Maine's suburban wilderness.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

Follow the original medieval paths that wind through this intriguing section of the city.

This recreation of a 19th-century dime museum is full of oddities.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

Carved, egg-shaped stone with no explanation.

There’s a hidden military meme engraved on the World War II Memorial.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

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

An outlandish shoe shaped house built by an eccentric millionaire.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

A rare view of a preserved Victorian science museum.

This replica of the Greek structure is in the heart of Nashville.

Take a drunken tour inside the world's largest known geode.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."