A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

An unusual round church in London with a Templar past.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

This sprawling Jewish cemetery is one of the largest in Europe.

A brush maker used his factory to protect blind Jews from the Gestapo.

Tiny memorials honor individual victims of the Holocaust.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

This conical hill was built as a testing ground for an engineer known as the Glider King.

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

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

A fascinating insight into daily life in the Eastern Bloc.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This basement museum explores the art and artistry of fascism.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

A walkable map of the world, made from soil and stone by one man.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.