Read a book next to a Midtown waterfall.

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

A hip bar decorated with walls of golden skulls.

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

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

A yoga studio and venue for "chill-out parties" in a former chicken slaughterhouse.

In Little Caribbean, an ice-cream shop serves up regional flavors, including soursop, Irish moss, and "greatnut."

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

Every dish is blessed in this basement eatery beneath a Hare Krishna temple.

Here, exhibits come with a side of edible history.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

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

Volunteer-run library dedicated to exploring five decades of activism history.

An arcade packed with a rotating collection of unique independent video games.

This collection of grinning ephemera has grown from basement to Brooklyn.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

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

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

Ride the subways of yesteryear.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

The "Seinfeld" diner.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.