The secret medieval communication system will whisk your words above the noise of the crowd.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Fascination continues to surround one of history's most infamous shipwrecks.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

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

The Vatican of the movie industry turned into an actual church.

There are owls with glowing eyes in Herald Square.

Haven for steampunks.

This was one of the first (and last) university-built and operated nuclear reactors.

Rummage through this sunken ship, but leave your scuba gear at home.

Nikola Tesla's former home contains an homage hidden from plain sight.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

The first and only carousel with a lineup entirely of insects.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Bowl in splendor, if you're lucky.

This semi-hidden Manhattan restaurant is based out of a loading dock.

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

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.