The flagship building of an early national restaurant chain is a superb example of terra cotta art.

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

This mysterious marker puzzles pedestrians and infuriates geographers.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

These ornate manhole covers were used for a now-forgotten purpose.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

An annual extravaganza of Broadway theater memorabilia.

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

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

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

Unrepaired walls from a 1920 anarchist bomb attack.

A whimsical, but often overlooked clock in Park Avenue.

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

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

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

Cryptic messages embedded in the New York City sidewalk.

New York City's only preserved family home from the 19th century.

This innocent-looking townhome is actually a subway exit.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

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

Prove you deserve to be fed by Kenny Shopsin.