This former asylum for Black Americans is haunted by its history of violence and racism.

The ruins of an 18th-century mansion that was once named "Mistake" by the man who had it built.

A state park that once served as an important river crossing, and now offers protected lands for endangered plants and animals.

One of the earliest and best-preserved buildings in Charles County, Maryland.

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

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

This methodist cemetery is slowly receding into the wilderness along a Maryland highway.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

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

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.

A historic Maryland home that once belonged to a man who has been called "the most insignificant" U.S. Supreme Court justice.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.