One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Home to items never before seen by the public.

The only remaining building in New York to see the inauguration of a president is being slowly overtaken by a grocery store.

A large boulder marks the place where the island of Manhattan was purportedly "sold" to the Dutch.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

Oldest surviving example of a Dutch saltbox frame house in America.

A hidden bar inside an ad agency has a deliberately misleading name, so employees can stay late under pretext of paperwork.

“Wagon Jobber" turned smokehouse magnate's family-owned business is still going strong 100 years later.

You must take the A train... to the last active cemetery in Manhattan.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

One of the few Glatt kosher delis in the United States is a cornerstone of its Hasidic neighborhood.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

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.

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

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

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

The best B-movies filmed on a shoestring budget were born here.