These small house replicas have stood proudly since the 1950s, even as the property has changed hands.

Intricate, eye-catching, award-winning rubber sculptures liven up this Pennsylvania town.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The whole world in one water tank.

A well-worn trail through thick woods in northern Montgomery County leads to an old schoolhouse.

Built in 1815, the stabilized ruins of the grist mill and sawmill are now gated, but interpretive displays on the features and functions of the mill preserve its history.

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

The oldest surviving one-room schoolhouse in Montgomery County, Maryland.

Dating to 1793, this is the oldest building in Poolesville.

The old building has been restored to its 1907 appearance.

Bizarre Cavern.

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

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

Near the state border, cars seem to defy the laws of physics by rolling uphill.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

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.

True to its name, this little house presents like a dollhouse, and surprising details are revealed with a quick peek through the window.

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

A monument marks the location of the first successful steamboat demonstration.

Once the home of a noted Civil War spy, the two-story brick house now serves as a museum.

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

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.