A Manhattan Episcopal church with an eerie underground crypt.

NYC's legendary underground network for bovine transportation.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A whimsical, but often overlooked clock in Park Avenue.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Unrepaired walls from a 1920 anarchist bomb attack.

The oldest living tree in Manhattan comes shrouded in sinister legend.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

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

Visit the monolithic tomb of America's most famous general.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

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

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

A quiet and contemplative oasis in the middle of New York's bustle and riot.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

During the holidays, a vintage subway train whisks New Yorkers back in time.

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

Lie in a hammock where George Washington stood.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

The oldest surviving synagogue in New York City is now a soaring art space.

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

A celebration of capitalism in Midtown.