A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

A secret door leads to this cozy dive that sells only “milk.”

The final resting place of one of the most important figures in the world of tea.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The hidden lair of an alchemist rediscovered in a 2002 flood.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

A museum of co-operativism housed in the birthplace of the modern movement.

This nondescript building hides an entrance to an underground nuclear tunnel system.

A 19th-century time capsule of travel, fiction, and historic texts still available to the public.

Have a seat with the father of modern computing at this Manchester monument.

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

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

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

Walk through Czech history in Prague's largest graveyard.

Humble beginnings for one of the world's most famous scientists.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

Countless grotesque faces stare out from this eerie Prague art wall.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.