Harlem park dedicated to compulsive hoarders killed by their own junk.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

This small, hidden cove is home to abandoned boats.

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

Check out the underground party scene at the "Burning Man of Brooklyn."

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

Plot your trip through the city on the sidewalk.

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

The first and only carousel with a lineup entirely of insects.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

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

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

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

Sniff the Titan Arum's rotting flesh.

Become a prohibition rebel.

One of only two commuter aerial tramways in the United States.

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

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

Elevated freight railway turned wildly successful urban park.

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

A modern zoetrope on the New York City subway.