South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

Harlem park dedicated to compulsive hoarders killed by their own junk.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Nature and beauty amidst pollution and industrial wreckage.

A modern addition to the Greenpoint skyline.

Four cars from the old system were once on display, but were removed in 2014.

The factory that helped produce a dominant form of lighting before Thomas Edison.

Once home to the country's most gargantuan ships, this graving dock now waits for people to buy furniture.

A retired oil tanker now offering amazing views of New York City.

A strip of modern stores in historic buildings.

The humble fort that saved Washington.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

“Invented in Key West, Perfected in Brooklyn."

A mosaic made of materials gathered from this Brooklyn community adorns the walls of this tunnel.

A century-old magnolia tree is the only living landmark tree in New York City.

This miniature village stays behind in the Breuer Building, even as the museums around it come and go.

Nearly four centuries after its founding, remnants of one of the oldest planned communities in North America are still visible in southern Brooklyn.

This small, hidden cove is home to abandoned boats.

Detailed facade of a brownstone in Boerum Hill.

This innocent-looking townhome is actually a subway exit.