A miniatures park with a model of Wolf's Lair as it looked during World War II.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

The shattered remains of the world's once tallest structure.

This wooden mosque is one of the few remnants of medieval Poland's Muslim Tatar community in this deeply Catholic country.

This formerly-prosperous Silesian mining town was completely demolished in the late 1960s and early 1970s as an attempt to cover up a secret Soviet uranium mine.

The center of this Polish border town was so thoroughly wiped out in World War II that only the foundations remain.

This lakeside bunker complex in Mamerki, Poland, housed the Supreme Military Command of Nazi Germany during World War II.

This hidden collection of everyday objects illustrates life within communist Poland.

A memorial to the beloved brown bear that served in the Polish army during World War II.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

The site of the first battle of World War II.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

When German-Iraqi relations broke down, this embassy was vacated post haste.

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

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

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

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

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.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.