Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

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

This innocent-looking townhome is actually a subway exit.

An unassuming secret door once led to a legendary watering hole.

This unusual subway stop was originally a real estate office.

A ruthless Soviet relocation campaign birthed a new cuisine, and this humble restaurant.

This neighborhood grocery houses a treasure trove of Eastern European delights.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

A burial ground of rusting metal grave markers.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

This historic hotel invented the chocolate brownie.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

This grubby wall is said to be one of the Earth's esoteric energy centers.

Sculptures, jams, and the wild west collide at this folksy retreat.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

Once called Winthrop Park in 1889, home to a decidedly sexy tribute to the Monitor vs. Merrimac battle.

Obscure and obsolete publications are given new life as works of art.

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

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

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

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

A bit of retro transportation flair preserved in the world's largest department store.

Cryptic messages embedded in the New York City sidewalk.