A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

The longest fence in the world stretches over 3,000 miles to keep the dingoes out.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

For millennia, explorers were obsessed with discovering the source of the Nile—is this small mountain stream really the answer?

The Hveragerði fissure runs through this unassuming shopping center.

The oldest candy store in the world has been selling traditional sweets since 1827.

The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

Far from the shore, this sandy victim of the Skeleton Coast looks like it was plopped in the middle of the desert.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Pilgrimage site for star-crossed lovers.

Denmark’s never-ending bridge.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

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