A museum dedicated to exhibiting remarkable outsider art.

An eerie, decaying ghost town destined to fade into the forest.

Remnants of a storybook amusement park hidden behind a strip mall.

A miniature city within a city, complete with traffic signs, signals, and streets to teach Baltimore's youth traffic safety laws.

Bizarre Cavern.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

This hidden treasure provides a charming access point along the south side of Baker Park.

A well-preserved quarry and six of eight continuous burning pot kilns used to make burnt lime and crushed stone are highlights of the self-guided walking tour in Fountain Rock Park.

Take a trip to the past aboard a 1920s railcar or open flatcar for a scenic ride through Maryland farm country.

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

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

Ship skeletons haunt Baltimore's waterways.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

This abandoned sea fort has become an accidental bird sanctuary.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

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

A rural colonial settlement that contains the remains of a store and cooper.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

The longest-covered bridge in the state of Maryland.

A remote horde of architectural treasures fit for Indiana Jones.

This bell is one of the last remnants of the lost city of Triadelphia.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

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