A wall of chewing gum moonlights as collective art.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

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

One man's swirling six-acre monument of stone.

This former water source for the City of Brooklyn is now a thriving natural wetland.

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

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

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

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

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

Elevated freight railway turned wildly successful urban park.

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

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A century-old magnolia tree is the only living landmark tree in New York City.

Check out the underground party scene at the "Burning Man of Brooklyn."

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

HBO series' stage tucked away in a Greenpoint lot is the largest theatrical set of its kind in the United States.

A modern zoetrope on the New York City subway.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The highest rapid transit station in the world.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.