Use a key to unlock this medieval sewer tunnel.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

Museum dedicated to wax representations of disfiguring diseases.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Historical marker that is a mini replica of the original in New York.

The magic's in the hole!

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

The world's oldest known salt mine.

In one of the world's smallest countries, a royal's personal winery is open to the public.

Browse through a century of this principality's first popular export.

Liechtenstein's royal family calls this medieval alpine castle home.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Terrifically morbid cemetary and site of famous Paracelsus' grave.

The largest earthwork effigy in the world.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

The site of the worst mining disaster in Ohio's history.

An abandoned asylum incorporated into a college campus.

A castle built by an eccentric medieval enthusiast in suburban Ohio.

Rare recess caves fill this unbelievably beautiful Ohio park.