Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

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

From scholastic to sepulchral - now under reconstruction.

A legendary speakeasy bookstore returns from the brink.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Become a prohibition rebel.

A hip bar decorated with walls of golden skulls.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Try not to get slimed in Tribeca.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Tucked in the back of this amazing antique store is an important piece of medical history.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Quite possibly the last cross all humans will ever see.

Despite its name this unique art piece was established to commemorate a tragic flood.

An ever-changing gathering of crude wooden figures haunts the St. Lawrence River.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This church in Pittsburgh is home to the largest collection of religious relics in North America.