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

A museum collection honoring the long history of the FDNY is held in a disused Manhattan fire house.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

19th century cemetery hidden in Brooklyn's Prospect Park.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

Walk into the 19th century without leaving Brooklyn.

This former crime corner has been turned into an eclectic community center.

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

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

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

Become a prohibition rebel.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

This small Catskills village has six independent bookstores and more bookshops than restaurants.

This Central New York ghost town was once a prosperous railroad community.

Tiki luxury on Nob Hill.

Oldest surviving example of a Dutch saltbox frame house in America.

Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

Unusual books about food and drink abound in this 19th-century New York townhouse.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Hear the tales of New York's most notorious criminals.

This quaint museum taps into the sweet history of the maple syrup industry.