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

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

This theater opened in 1998, but both the building and the puppeteers who perform there have a distinguished history.

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

Seattle's super-sized cowboy apparel once belonged to a themed gas station that wrangled in herds of tourists.

An ice cream parlor chain that caters to vegans and pinball fans equally.

Built in the 1920s, this co-op in the Bronx feels more like an Italian villa than a typical New York apartment building.

The longest step street in the city.

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

This recipe is set in stone.

A mass grave for victims of one of the city’s worst fires.

A way to take your secrets to someone else's grave.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

The painter who popularized "bulls" and "bears" as symbols for the stock market didn't get a proper headstone for over a century.

A curious friendship between two inanimate ladies.

This controversial statue has migrated twice in its life.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The highest rapid transit station in the world.

A working metal shop and venue for outrageous art and music shows in a former cannonball factory.

The real "father of baseball" rests in Brooklyn.

Final resting place of the immigrant who brought artificial seltzer water to America.

The inventor of the Coney Island hot dog rests in a grand mausoleum in Brooklyn.