This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

A wunderkammer of mysterious objects and stories.

Metro station with a claim to rock n' roll fame.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

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

A collection of abandoned typographic signs from Berlin and beyond.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

A museum dedicated to a Cold War era sausage.

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

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

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

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A surreal museum of extraordinary industrial objects.

A fascinating insight into daily life in the Eastern Bloc.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

An odd museum dedicated to French fakes.

A modern-day Lascaux cave underneath Paris.

A museum which takes visitors to the côté obscure of Paris.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

Noirish green neon marks the location of one of the oldest private detective agencies in France.