The site of Paul Revere's historic two lantern warning.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

100 massive sculptures in the Hudson River Valley.

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

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A crumbling hospital from the 1850s on Roosevelt Island.

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

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

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

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

Read a book next to a Midtown waterfall.

A Manhattan office building is home to the world's largest chess board.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.