World-famous, Pink's still manages to keep its prized cult fetish status.

This Upper East Side apartment co-op was designed as a tuberculosis sanitarium.

The most confusing clock in New York.

A daily replay of the experiment that proved the rotation of the Earth.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A terrific purveyor of natural history objects and curios.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

Legendary prop shop filled with one man's collection of scientific curiosities.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.