Nondescript elevator doors open to reveal a stunning, surreal world.

Become a prohibition rebel.

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

A hands-on traveling collection of the innovative devices of yesteryear.

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

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

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

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.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.