Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

The notorious headquarters of a corrupt political machine.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Elevated freight railway turned wildly successful urban park.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

Carved, egg-shaped stone with no explanation.

A former zoo turned public park, where visitors can hang out in the old animal cages.

Beautiful natural falls where Satan once ruined a pot of beans.

Walk the same tracks that once ferried Gilded Age aristocrats to their vacation destinations.

A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.

Sculptures, jams, and the wild west collide at this folksy retreat.

A monument to the Mohawk people stands along an old Native American trade route.

A stunning garden filled with fantastical environmental folk art and sculptures.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.