A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

A Manhattan office building is home to the world's largest chess board.

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

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

Home to a dizzying array of letterpress blocks with a rich history.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

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

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

More gold than anywhere else, ever.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This Russian bar-restaurant lies within a three-story underground bathhouse.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Apparently, the whole cosmos emanates from this plain concrete tower.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A memorial to legendary newsman, publisher, and owner of La Gaceta, the only trilingual newspaper in the U.S.

A historic landmark and museum filled with curious objects representing the history of Key West.

Dedicated to the victims of one of the deadliest hurricanes to strike the United States in recorded history.

The former desk of Fire Chief Joseph "Bum" Farto is all that remains after his mysterious disappearance following a drug conviction.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.