This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

This house's itty bitty size means no humans allowed.

The streets of a sleepy Spanish town proudly exhibit some of the world's finest graffiti.

A whimsical garden of outsider art in the Spanish countryside.

Stunning Roman aqueduct used for 1900 years and still standing.

Hidden well off the beaten path in Catalonia is this crumbling medieval castle that is slowly being covered in graffiti.

Living towers made of people that are now recognized by UNESCO.

This abandoned racetrack looks like it is set to hold competitions in the apocalypse.

Abandoned waterpark turned counter-culture mecca.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

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

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

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.

This cemetery features modernist statues as strange as its name.

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

A beautiful but toxic fountain of mercury.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

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

An architect transformed this abandoned cement factory into his castle-like workshop.