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

Tiny memorials honor individual victims of the Holocaust.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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

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

You've probably seen these distinctive orange-tiled columns on the big screen.

A restaurant and observation deck built in a unique broadcasting antenna.

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

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

Explore the frozen river and take a walk to a nearby island on some of the longest ice roads in Sweden.

The first overseas server for Facebook in Sweden's tundra.

The world's first purpose-built indoor shopping mall opened in Sweden in 1955.

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

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

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

This chimerical bridge/tunnel appears to dead end right into the sea.

Micro-nation based around a nine-story high illegally built tower.

This Scandinavian island is the site of the first modern observatory.

Old Danish castle immortalized in Shakespeare's Hamlet.

This cobblestoned medieval-style town was entirely constructed in the 1990s and 2000s.

Swedish skyscraper with a 90° twist.

These waste baskets play a few risque messages to discourage littering.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.