Mysterious rocks that ring musically when struck.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

This historic national park is covered in the stunning ruins of red rock pueblos.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

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

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

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

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

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

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

A Civil War Museum with some notable medical antiques.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

A park in a small Pennsylvania town is home to an original sculpture by one of its native sons, legendary artist and activist Keith Haring.

The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

The first marker along the famous boundary.

See massive fossils that are over 200 million years old in northeastern Arizona.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Bits and pieces from the ill-fated Donner Party's winter cabins.

A former hardware store near Yerba Buena is the official home of California's history.

The miraculous hydrant that saved the Mission District in 1906.