Detailed facade of a brownstone in Boerum Hill.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Reverend Jen's unique museum/living room showcases her troll collection.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Unique antiquarian shop specializing in globes, maps, and prints.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

From scholastic to sepulchral - now under reconstruction.

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

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Ride the subways of yesteryear.

A hands-on traveling collection of the innovative devices of yesteryear.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

New York's oldest magic store.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.