One of the world's first dedicated bank buildings in the world is now the oldest one.

A concrete Picasso in the middle of a student housing complex on the outskirts of Stockholm.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

Site of the first radio and telephone broadcasting companies in Copenhagen.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

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

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”

A plaque marks the former home of Käthe Paulus, an aerial acrobat who invented the modern folding parachute.

This TV tower once secretly housed a GDR intelligence team.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

Reminders of the Battle of Berlin still scar the railway.

Cold war icon and onetime "hole" in the iron curtain.

A 12th-century fortress containing some of Berlin's oldest buildings.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

A wunderkammer of mysterious objects and stories.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

Tiny memorials honor individual victims of the Holocaust.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.