A lawn full of retired spacecraft on display at one of NASA's first research labs.

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

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

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

This four-story steel sphere in Maryland was used to test biological weapons.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

A relic of FDR's brief foray into utopian urban planning.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

Once America's tallest structure, now a Baltimore landmark.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

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

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

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

A museum dedicated to exhibiting remarkable outsider art.

Eighteen miniature death-scene dioramas.

The trials and tribulations of marking Poe's grave.