The studio of influential composer Charles Ives is perfectly reconstructed, hidden in the back of the American Academy of Arts and Letters.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.

A world of whimsy and wonder aboard a one of a kind historic landmark vessel.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

An unassuming secret door once led to a legendary watering hole.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

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

This natural spring not only claims to heal the wounded but it has also been willed to God.

The world's largest egg has been cracked a number of times over the years but has been repeatedly replaced.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

I fought the law and the precinct caved in.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

A long abandoned hospital building on the outskirts of NYC.

The preserved house of a jazz legend still echoes with his music.

A vast city of the dead, where the deceased outnumber the living by more than a million.

Fabrication workshop where the encasement for One World Trade Center's beacon was constructed.

A cruise terminal that changes the atmosphere of Red Hook's industrial waterfront.

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

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.