Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

This charmingly homemade amusement park has been growing for 40 years.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

One part local history, 99 parts gruesome haunted house.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

A church of bones, decorated with 40,000 human skeletons.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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

This abandoned amusement park was built on a site with a dark history.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Eighteen miniature death-scene dioramas.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A beautiful Victorian-era cemetery, complete with a miniature village.

Stroll through a wonderland of stupendous moss-covered trees.

The fairy tale castle of the "fairy-tale king."