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

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

This WWII aircraft museum presents its wrecks like taxidermy, complete with recreations of the crash sites.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

A towering cemetery monument honors a man who threatened to expose the Freemasons and paid with his life.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Local legend says that whoever burns down this 2,000-year-old tree will only have seven days to live.

This tiny cluster of abandoned buildings looks like the future of the ghost town - today!

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This chimerical bridge/tunnel appears to dead end right into the sea.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

The world's largest woodcarving collection includes dozens of Bible scenes and a wooden bestiary, all carved by one man.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

This massive airship factory is so large that it has its own indoor weather.

The Uyghur settlement in the middle of a lake continues to raise questions.

This Croatian island is for sale but no one is buying due to the dozens of accused Nazi sympathizers who were massacred there after WWII.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.