This abandoned sea fort has become an accidental bird sanctuary.

A collection of artifacts from Maryland's maritime past.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

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

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

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

The Home and murder site of the witch of Rehmeyers Hollow.

An outlandish shoe shaped house built by an eccentric millionaire.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

This decommissioned surface-to-surface missile resides outside the American Legion Post in Pennslyvania.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

Once America's longest-manned military fort, now an abandoned hulk.