The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

The stunning remnants of this wreck emerge from an otherworldly backdrop of rainforests.

A historic observatory precariously perched at the "Top of Europe."

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

This dilapidated ship carcass covered in trees is a striking sight.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

One of the best-preserved remains of "Tokyo's lost rivers."

A unique local art exhibit that has continued to grow since 1989.

At high tide this strange footbridge appears to have no purpose whatsoever.

A small Richmond island dotted with the remnants of hundreds of years of history.

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

Conjoined twins Daisy and Violet Hilton were stars of the vaudeville circuit.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

Passengers are not allowed to set foot outside this station, but you can still enjoy spectacular views of the sea from the platform.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

This ghost town in Belgium will lose its street art when it ceases to exist.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

For nearly 50 years this airplane that crashed during World War II remained missing in the remote Australian backcountry.