Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

A retired subway car stands alone in a field in the middle of Queens.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

No monkeying around, this fountain was really named after the classic sci-fi film.

Where the four original members of the Ramones hung out and revolutionized punk rock.

A skeleton without arms watches over the side door of one of the most beautiful baroque temples in Mexico.

One in a pair of subterranean caves created by an ancient eruption of Mount Fuji.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

Now the site of a high school, this was almost the location of the largest cathedral in the US.

This beautiful Brooklyn monument over a crypt memorializes a grim and largely unknown story from the American Revolution.

The home of former Heavyweight Boxing Champion, "Gentleman Jim" Corbett.

The oldest living organism in New York City. Maybe.

This Orthodox Church's exterior is rather unorthodox.

Holding the most bodies of any cemetery in the United States.

This mysterious marker puzzles pedestrians and infuriates geographers.

The cuisine at this Sheepshead Bay spot tells the story of a displaced Muslim Chinese community.

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

Waterway populated with abandoned projects, including a submarine.

This small, hidden cove is home to abandoned boats.

One Brooklyn man's collection of life-size fiberglass statues has taken over his entire yard.

A working monastery hidden away in Brooklyn once abutted the location of a former inebriate's home.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

Brooklyn's Barkaloo Cemetery is the resting place of a scant two bodies.

100 massive sculptures in the Hudson River Valley.