A medieval church built up to defend its village.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

A stunning 18th century pharmacy and medieval chemist's collection.

Hundreds of hidden passageways weave through the old quarters of Lyon.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

A wunderkammer of mysterious objects and stories.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

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

The final resting place of many of Germany's most famous communists.

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

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

A fascinating insight into daily life in the Eastern Bloc.

A collection of abandoned typographic signs from Berlin and beyond.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

A beautifully eclectic mix of architectural styles.

Inside the columbarium, thousands of colorful, high-tech Buddhas guard the ashes of the dead.

The original "capsule building" is a masterpiece of Metabolist architecture.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.