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

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

One of the first major shipyards in Brooklyn.

Cryptic messages embedded in the New York City sidewalk.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A semi-scholarly approach to sex.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

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

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

The home of one of America's most beloved fictional characters has become a real world landmark.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

There must be a pun in this haystack somewhere...

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

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

A graffiti Mecca welcoming artists from around the world.

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

Site of the first pathological and bacteriological research facility in the United States.

Read a book next to a Midtown waterfall.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

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

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Hiroshima survivor on Riverside Drive.