The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

One dedicated priest constructed this beautiful stone grotto by hand from 1926-1933.

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Rippling sand dunes frozen in the Arizona rock.

No one knows for sure why this town's dead refuse to rot.

This glamorous old building is said to have inspired the Tower of Terror.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

A retro Yugoslav congress, cultural, and business hall built in the 1970s, with an iconic world clock.

A statue of an astronomer gazes at the sky as a tribute to Caroline Herschel.

A statue high in a hill that represents how Buffalo Bill got his name.

This artsy public restroom is shaped like a giant john.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

Constructed in 1857, mourners used these towers to burn offerings of paper prayers and gifts for the afterlife.

Two insane asylum bodies embalmed by an amateur.

Venice's "Island of the Mad."

This site is both a remarkable reminder of the town's mining history and a fantastic government blooper.

A giant hilltop cross marks the location of a sanctuary with stunning views of Acapulco.

Dedicated to the founder of "New Norcia."

Watch cheese-flipping robots in action at this factory and museum.