The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

This former water source for the City of Brooklyn is now a thriving natural wetland.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This eclectic sculpture garden in Brooklyn, home to a bizarre collection of art, was once a run-down junkyard.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

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

The site of a fallen tree that protected Americans from British forces during the American Revolution.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

A town trapped in time - 1958 to be exact.

In the middle of suburban Staten Island, a nearly 150-year-old bakery is preserving the art of a disappearing New York treat.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.