Not one, but two of Frank Lloyd Wright's architectural masterpieces nestled on the same street.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

One man's swirling six-acre monument of stone.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

This house was the subject of an Edward Hopper painting, which in turn helped inspire the design of the Bates house in Alfred Hitchcock's 'Psycho.'

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

A whimsical monument deep in this park commemorates the groups that helped build it.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

This site was once the largest ski jump tower in the world.

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

Filled with history, this cemetery is maintained each summer by a few hungry goats.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

On the Hudson resides one of the largest clocks in the world.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.