Relics from as far back as the 16th century are on display in a city known for its playing card industry.

A plaque on the side of a building is a small tribute to the woman who invented an iconic Berlin fast food.

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

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

A moving memorial to the fallen and missing from WWI trenches.

Visitors to this Belgium graveyard are greeted by the grieving stone parents of the young men lost to war.

Christ's blood preserved in a Belgian town.

Six turbines towering over a wide road for passersby.

This ghost town in Belgium will lose its street art when it ceases to exist.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

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

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

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

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

A fascinating insight into daily life in the Eastern Bloc.