An unassuming stone building houses New York City's oldest seismic station almost 30 feet below the Bronx.

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

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

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

The first and only carousel with a lineup entirely of insects.

Whether you're up or down, the Elevator Museum is worth a stop.

This outdoor gallery of sculptures along the East River was once a landfill.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

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

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

A controversial magical figure is hidden within a diorama of the city.

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

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

Recovered suit of a cannibalistic West African gang.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

The first piece of public art dedicated to LGBT rights.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Read a book next to a Midtown waterfall.

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

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

An annual extravaganza of Broadway theater memorabilia.