Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

A statue commemorating a beloved stray dog who was adopted by the entire neighborhood where he lived.

Shrapnel, dynamite, bullets and Franco couldn't destroy this bust, rescued and kept hidden as a family secret for over 40 years.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

These spooky and unusual stone formations create an underworldly landscape.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

This eclectic architectural gem played witness to Zurich’s colonial past.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

Walk through a restaurant's refrigerator door to reach this hidden bar.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

Caves famous for the dragon-slaying saint who lived there.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A mechanized clock where a man fights off a dragon, crab, and rooster.