A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Two stunning 17th-century libraries and a cabinet of curiosities.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

Real bones which are said to have belonged to a Polish dragon.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

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

Reminders of the Battle of Berlin still scar the railway.

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

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

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

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

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

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

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

Berlin's old airport.

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

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