The internet as provided by a James Bond villain.

The broken skateboards that became a poignant memorial to a murdered skater.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

Avoid gangster interaction while window-shopping.

This abandoned subway station can still be seen on regular commuter trips.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

The "Seinfeld" diner.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Peek through the gates at this oasis from the city, full of Old English charm.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

New York City's smallest piece of private property.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

Elevated freight railway turned wildly successful urban park.

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

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

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

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