Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

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

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

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

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

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

A living archive of urban activism and space reclaimed.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Nikola Tesla's former home contains an homage hidden from plain sight.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

New York's oldest magic store.