This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The world’s first penitentiary, meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

One of the largest underground systems runs under Canada's largest urban center.

A semi-scholarly approach to sex.

Tucked in the back of this amazing antique store is an important piece of medical history.

Salute the leader of the proletariat.

Go inside to really appreciate this 500-year-old technological masterpiece.

Model Trains and Much More in Hamburg.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Try not to get slimed in Tribeca.

The prototype for all Nazi concentration camps.

Museum dedicated to the terror regimes of Hungary.

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

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

A museum dedicated to a Cold War era sausage.

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

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

Blitzkrieg bop your way through Berlin's Ramones Museum.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.