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

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Site of the first pathological and bacteriological research facility in the United States.

A Manhattan office building is home to the world's largest chess board.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

The oldest surviving synagogue in New York City is now a soaring art space.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

One kilometer of thick brass rod laid out before your eyes.

A semi-scholarly approach to sex.

Rummage through this sunken ship, but leave your scuba gear at home.

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