Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

This unusual building straddles two countries.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

Centuries-old bridges grown from tangled roots.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Walk over a 150 year old manhole.

These historic buildings once housed the headquarters of one of the most infamous gangs of New York.

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

A small part of lower Manhattan is actually made from a bit of England.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

Red frames showcase remnants of one of New York's original subway stations.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

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.

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

A sculptural commentary on capitalism pokes up from the East River.