Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

One of only two commuter aerial tramways in the United States.

New York's oldest magic store.

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

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The Gunditjmara Aboriginal people of Australia began construction on this vast aquacultural complex 6,600 years ago.

A huge resale shop for the cast-offs of the film & television industry.

Here, exhibits come with a side of edible history.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

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

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

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

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

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

“Invented in Key West, Perfected in Brooklyn."

Detailed facade of a brownstone in Boerum Hill.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Ride the subways of yesteryear.

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

Volunteer-run library dedicated to exploring five decades of activism history.

This whimsical fountain pays tribute to Toronto's four-legged friends.

This remote Moravian mission brought Christianity—as well as devastation—to the Inuit people.