Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

Endless rows of boxes of paper records line the hallways of the archaic federal facility where guns are traced.

A memorial in coal country commemorates the victims of an all-too-preventable mining disaster.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Two dozen pinball games hidden away inside a most unlikely location.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Built by the patriotic residents of Boonsboro in a single day.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

An eerie, decaying ghost town destined to fade into the forest.

This free, take-a-book shop seems like a trick but isn't.