Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

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

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Dim sum, served in a grand old theater.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

The only place for a truly presidential dram.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

At 207 feet, one of the world's longest continuous escalators.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Ship skeletons haunt Baltimore's waterways.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.