This railroad tunnel was once the longest in Massachusetts.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

A recreated sign from the movie Jumanji has become a makeshift tribute to the film's late star.

A gravestone marks where a man's lost limb was laid to rest.

A strange, heartwarming, decades-old declaration of love on a New Hampshire roadside.

Carved, egg-shaped stone with no explanation.

Restaurant in a 1741 farmhouse that touts the story of its haunting on its menus.

Rock face that shares a name with Mary Shelley's famous doctor.

The final resting place of the man who played the Invisible Man.

This modern medieval weapon of war was built to toss pumpkins.

Expertly restored pinball machines as far as the eye can see.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

This humble resting place belongs to one of history's most celebrated restaurateurs.

The ghost town that was one of New Hampshire's first settlements now exists as a park detailing its history.

This young woman's tombstone names her murderer, who is buried in the same cemetery.

A small obelisk marks the spot where Captain Sam Greele was killed by a falling tree.

This New England drive-in was built to straddle the border between two states.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

One of the only places where Earth’s mantle lies above water.

One of the oldest living oak trees in the Southeast.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

One of the few brewers in the U.S. experimenting with hop-free beers.

The grave of Mary Nasson is shrouded by witchy legends.