This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

Where commuters walk through remnants of an ancient Greek necropolis.

A sharp sculpture made of thousands of pieces of jagged glass.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

An ancient octagonal weather station named for the eight Greek gods of wind.

This former military installation was turned into a discipline center by the Taiwanese Navy.

An early 20th-century bullring converted into a modern shopping center.

This colorful statue welcomes visitors to a Barcelona park.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

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

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

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

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

Turntable anonymously received orphans, alms, and groceries.

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.

A temple to modernity, tucked away amid Barcelona's more well known museums.

This former medieval prison now unlocks Estonia’s rich photographic history.

A church filled with the bones of hundreds of virgins martyrs—or so they say.