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

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Go surfing on this urban wave, "hacked" by local surfers.

One of the world's heaviest musical instruments towers within a popular urban park.

The world's oldest rose is so tough it survived being bombed in World War II.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

A quaint Russian village in the middle of a German metropolis.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

The prototype for all Nazi concentration camps.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

This "floating railway" is one of the world's oldest monorail systems.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The fairy tale castle of the "fairy-tale king."

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

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

Ruins of a German Castle on top of a towering stone pillar.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.