A lush indoor jungle fills this bustling Madrid transportation hub.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

Wonderland replication in progress by one persistent man.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Vines grow up the metal bars in this public park created from an old machine factory.

World's largest permanent maze made of 18,000 conifers.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.

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

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

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

These spooky and unusual stone formations create an underworldly landscape.

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

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

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

Walk through Czech history in Prague's largest graveyard.

A Jenga-style cylindrical tower of books that appears to go on forever.

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

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

This Parisian fountain is a little bit fantasy and a little bit nightclub.