The "Prussian Versailles" that is as glorious today as when it was built.

If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

A fascinating insight into daily life in the Eastern Bloc.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

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

A slice of central Asia in the middle of Berlin.

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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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

A monument to the man who almost killed Hitler.

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

This watchtower once presided over the Berlin Wall.

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

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

Reminders of the Battle of Berlin still scar the railway.

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

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Its collection includes a broad array of social, geographic, graphic design, and political history.

These engineering masterpieces are a dominant feature of the Belfast skyline.

Over time, this castle grew to encompass the entire island.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.