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

This small, hidden cove is home to abandoned boats.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

This recipe is set in stone.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

The first museum in the United States dedicated entirely to posters.

An exhibition space dedicated to American outsider art created between the 18th and 21st centuries.

The childhood home of one of America's greatest unsung troubadours still stands in a much changed Brooklyn neighborhood.

The pioneering photographer's prints are immortalized inside her childhood home.

For 20 years, local pumpkins have met their fate on the iron fence surrounding this Cobble Hill home.

A ruthless Soviet relocation campaign birthed a new cuisine, and this humble restaurant.

A replica of a 7th-century church hides in plain sight in the middle of the concrete jungle.

An arcade packed with a rotating collection of unique independent video games.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

This Orthodox Church's exterior is rather unorthodox.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

A hidden architectural treasure in New York's Brooklyn.

A town trapped in time - 1958 to be exact.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

Final resting place of two dozen New York City harbor ships.

One of the oldest Jewish cemeteries in the city, it is now overgrown with an urban forest.

This Queens hospital has stood abandoned for almost 20 years after its patients were secretly relocated in the dead of night.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.