The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A remarkable cabinet of curiosities in an art space in the center of Berlin.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

Century-old shop, specializing in Occult products.

The oldest surviving presidential residence in the United States.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A tiny, unmarked beer and whiskey bar above an Ethiopian restaurant in West Philly fails to conceal live bluegrass.

This elaborate towering structure was once famed for its revolutionary height.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A layered tribute to the work of mosaicist Isaiah Zagar.

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

World's first "penitentiary," meant to be humane, drove men insane.

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

Tiny memorials honor individual victims of the Holocaust.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

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

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Berlin's old airport.

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

Blitzkrieg bop your way through Berlin's Ramones Museum.