A crumbling hospital from the 1850s on Roosevelt Island.

How a century-old glass factory in Queens became a concert venue and arts center.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

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

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

A no-frills cinephile haven known for showing offbeat, underseen films.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

A decommissioned military complex that's now a modern industrial park.

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

Elevated freight railway turned wildly successful urban park.

The most confusing clock in New York.

The only subway station in the city that still makes use of gap fillers.

An aptly-named street near the birthplace of the modern LGBT rights movement.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

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

Avoid gangster interaction while window-shopping.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

For a buck, students can snag freshly picked apples grown in the university orchards.

This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

The library of every book lover's dreams.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Pluto is still considered a planet in Ithaca, New York.