The Internet Age began with a transmission from this biker bar.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.

Here, exhibits come with a side of edible history.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Historical figures from New York City's Catholic community reside in Midtown.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

An artist's cute bronze subway sculptures belie his violent artistic past.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

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

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

A bit of retro transportation flair preserved in the world's largest department store.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

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

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

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

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

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

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