A beautiful and classically designed villa, with an hourly infestation of monsters.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

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

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

France's most famous cemetery, with some of its most curious tombs.

Eighty million natural history specimens call this gargantuan museum home.

A kaleidoscopic warehouse-maze of handmade neon signs.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This classic restaurant features a gorgeous mirror-clad room.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Week-long block party becomes a competition for the best decorated street.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

A tree that defies gravity grows in an ancient ruin.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

The city of Palestrina was built around this magnificent terraced sanctuary dedicated to the pagan goddess Fortuna.

A spiritual sanctuary in a natural cave.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

The secret medieval communication system will whisk your words above the noise of the crowd.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.