The famous author's cottage hideaway.

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

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

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Avoid gangster interaction while window-shopping.

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

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

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

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

A quiet and contemplative oasis in the middle of New York's bustle and riot.

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."

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

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

A hidden "place of interment for gentlemen."

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

Bowl in splendor, if you're lucky.

During the holidays, a vintage subway train whisks New Yorkers back in time.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

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

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

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

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

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