The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

Little Red Lighthouse under the George Washington Bridge.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

A Manhattan Episcopal church with an eerie underground crypt.

A former connection to City Island, it has been abandoned since the 1930s.

A staggering collection of photographs depicting medical, social, and historical change.

Hundreds of antique bank vault locks on display in New York City.

Lie in a hammock where George Washington stood.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

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

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

Walk over a 150 year old manhole.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A celebration of capitalism in Midtown.

Peek through the gates at this oasis from the city, full of Old English charm.

A dilapidated dock tells the story of Titanic's missed arrival.

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

New York City's smallest piece of private property.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.