Nature and beauty amidst pollution and industrial wreckage.

A castle built for love, and abandoned due to heartbreak.

A winding, cliffside stretch of road overlooking the Delaware River.

Come for the pastrami, stay for the million-dollar art.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

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.

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

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

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

A once grand hotel is being retaken by the wilderness it once capitalized on.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

An unassuming secret door once led to a legendary watering hole.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.