A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

Known as the "Hobbit Houses," these storybook homes look like they're straight out of the Shire.

This mysterious artificial cave has long puzzled New Englanders.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

A meditative space out of a fantasy story.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

More than 200 eclectic sculptures surround the artist's home.

This lonely rock has been turned into a character loved and feared by children.

A memorial to a goat culled during a foot and mouth disease outbreak guards a series of fantastical caves.

A Saint Nicholas-themed ghost town in the Mojave desert.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

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

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

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

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

The most southern point you can drive to in the Western Hemisphere.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Where school buses go to die and be reborn as whimsical works of art.

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

This giant sculpture made of trash is a critique of society's wastefulness.

The site of the climactic scene from the classic horror film is now a historic landmark.