The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

The stones of this formerly witch-obsessed castle were used to build a church.

A stunning two-story timepiece within a medieval Brick Gothic church.

A meteorite-bounded town in Bavaria.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A Nazi concentration camp and Anne Frank's place of death.

Wax models of disease and deformity are on display at this German medical museum.

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 fearsome dragon clings to a corner of Munich's city hall.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

This Rococo church is known as the most beautiful village church in the world, and does not disappoint.

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

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

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

This unique Renaissance castle was turned into a home for Nazi occultism.

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The patron saint of spinsters grasps a container of dried blood.