The home of the first American-born saint is one of the only curved buildings in New York.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

Gang fights don't just happen on the streets, they happen under them too.

The oldest Methodist church in the United States has been spreading the good news for over two centuries.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

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

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.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

A simple midtown bar was once the home of a secretive and exclusive club staffed by "bunnies" under Hefner's strict rules.

This 220-year-old house is a reminder of New York City's Dutch past.

The former home of the reclusive "Weird Wendels" who dominated New York real estate a century before Donald Trump.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

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

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

There are owls with glowing eyes in Herald Square.

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

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

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

The 28-foot granite map plots the locations of 40 theaters in New York City.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

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