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

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

It houses the remains of a 17th-century version of the Titanic.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Metro station with a claim to rock n' roll fame.

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

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

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

The most visited, and possibly most controversial, museum in Germany.

An eerie, derelict amusement park in Berlin.

An alien church provides much needed silence in the midst of a Finland shopping center.

A subterranean house of worship carved right out of the bedrock.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.