The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

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

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

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

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

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

The prototype for all Nazi concentration camps.

A wunderkammer of mysterious objects and stories.

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

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

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Art and a pun, all in one.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A surreal museum of extraordinary industrial objects.

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

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

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

The place where World War I began.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.