Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

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

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

Bizarre Cavern.

This general store is more than a century old and home to various oddities and antiques.

Winding country roads in eastern West Virginia lead to an extraordinary place populated by fiberglass giants.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

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

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

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

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

One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

A haunting tribute to pioneering photographer Clover Adams.

A historic cemetery with unique artwork, a Civil War fort, and also happens to be the site of the Battle of Bladensburg.

This Georgian-style house built in 1746 is the oldest surviving structure in Bladensburg.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

The headquarters of the Audubon Naturalist Society is a small slice of heaven for nature lovers.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

The development and impact of electronic media showcased in a picturesque farmhouse in Maryland.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.