One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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.

A stately palace has been converted into the world's largest cannabis museum.

Commonly acknowledged as the only public monument to the Devil himself.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

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

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Mountain where Jesus was first tempted by the Devil.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This cemetery features modernist statues as strange as its name.

A beautiful but toxic fountain of mercury.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

This innocuous-seeming building is actually the remnant of a major wartime brothel.

This banal Parisian entranceway is not what it seems.