It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

The world's largest collection of witchcraft regalia.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

A Baroque mansion with ties to legendary magicians and alchemists.

This mysterious sign claims an American astronomer haunts the building—but is it true?

Sweden's southernmost prehistoric rock art is hidden just outside Gothenburg.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Where Venice's gondolas go for a tune-up.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

100 year tradition of fist fights, marked by marble footsteps.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.