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

Commemorating the spot where the famous scientist fed his pigeons.

This translucent sculpture represents a quintessential component of New York City's skyline.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

A simple midtown bar was once the home of a secretive and exclusive club staffed by "bunnies" under Hefner's strict rules.

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

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

The only certified Trappist brewery outside of Europe hides in the central Massachusetts hills.

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

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

Statue commemorating the use of ether in anesthesia.

A men’s restroom became a sandwich shop.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

Civil War Fort on an island in the Boston Harbor.

The hill that gave the Massachusett tribe, and later the state, its name.

The Connecticut village named for its subterranean thunder.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.