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

This stained glass window designed by Tiffany Studios is hidden behind the circulation desk of a public library.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

Resonating tubes make music from highway overpass.

The Vermont square that inspired Shirley Jackson's "The Lottery."

The building that inspired Shirley Jackson's "The Haunting of Hill House."

A monument to the military service of America's greatest traitor refuses to even name him.

A peaceful international sculpture garden in upstate New York.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

An abandoned dollhouse factory.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The oldest continuously inhabited street in America.

It would take 35 firetrucks to fill this enormous glacial pothole.

This dramatic rail curve was once the target of a failed Nazi attack.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

A living antique aviation museum in the historic town of Red Hook, New York.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.