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

A collection of abandoned typographic signs from Berlin and beyond.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Started as a kitchen garden, now the second largest botanical garden in the world.

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

The abandoned personal amusement park of the King of Pop.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Historic funicular railway, believed to be the shortest railroad in the world.

An essential stop before plundering, BYO Cutlass.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Museum dedicated to wax representations of disfiguring diseases.

Venice's "Island of the Mad."

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A subterranean shelter remains intact under a busy Paris railway station.

This Parisian café sticks almost exclusively to an ethos of reuse.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

A museum of carnival attractions where you are invited to ride the rides.

Abandoned railway line circling the city of Paris.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.