The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

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

This general store has stood in the same spot for well over a century.

The oldest military monument in the United States.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

This statue honors the author's groundbreaking family story.

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

A historic cemetery with unique artwork, a Civil War fort, and also happens to be the site of the Battle of Bladensburg.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

The Decoy Capital of the World.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

Explore the legends surrounding these mythical sea creatures inside this museum.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

An unusual sculpture, an interesting history, in a strange place, for a good cause.

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

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

The world's oldest continuously operating airport was founded by the Wright Brothers.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

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

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.