Ancient man-made caves underneath small town Belgium.

A beautiful maze marks where three countries meet.

An open-air sewer system that was covered piece-by-piece over 300 years.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Building Men of War and Indiamen from Holland's Golden Age.

A former plague hospital turned medical museum.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

Cat art as far as the eye can see.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

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

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

Outsider art meets paleontology at this roadside reptile repository.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.