A two thousand year old brothel uncovered in Northern Greece.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

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

A bookstore dedicated to the intersection of comedy and art.

This colorful statue welcomes visitors to a Barcelona park.

Barça football fans might see the insignia hidden in a church window as a divine sign.

An open-air "garden" of mural art that changes weekly.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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.

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

One of Europe's largest supercomputers is housed inside of a disused chapel.

Turntable anonymously received orphans, alms, and groceries.

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

Mountain where Jesus was first tempted by the Devil.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

Read a book with a glass of wine at this classically restored bar.

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

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

A beautiful but toxic fountain of mercury.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

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