Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

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

A giant time capsule not scheduled to be cored until 2040.

One of the only memorials dedicated to journalists who died in combat.

A Civil War Museum with some notable medical antiques.

Bizarre Cavern.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.