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

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

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

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

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

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.

A veritable variety of odds and ends.

A huge resale shop for the cast-offs of the film & television industry.

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