A graffiti Mecca welcoming artists from around the world.

A long abandoned hospital building on the outskirts of NYC.

The oldest private residence in New York City.

This former water source for the City of Brooklyn is now a thriving natural wetland.

The most radioactive spot in New York City can also fix your muffler.

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

This outdoor gallery of sculptures along the East River was once a landfill.

Nine nice parcels of land along a flight path offer a quiet respite... until a plane soars overhead.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

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

A temple belonging to the largest Buddhist order in South Korea nestled in the middle of New York City.

This landmark building is now a vibrant performing arts space with musical acts from around the world.

Guerilla gardeners reclaimed this abandoned railroad land literally putting down roots.

A mysterious statue of a leather jacket-clad rebel leans coolly on an odd yellow clock.

Amid the clacking of snooker balls, diners tuck into fiery Bhutanese fare.

This Queens beer hall preserves a German culture and language that is all but lost.

A former seaside jewel built for the everyman is now simply a neglected art deco fortress.

A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

The oldest living organism in New York City. Maybe.

An everyday Jackson Heights bodega conceals a Mexican seafood paradise.

This mysterious marker puzzles pedestrians and infuriates geographers.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

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

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.