One of downtown Berlin's last reminders of its Communist past.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

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

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

100 year tradition of fist fights, marked by marble footsteps.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

The largest mosque in Germany.

This monumental work of art symbolizes the coming together of a previously divided city.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.