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.

A small ballpark on Maryland's eastern shore pays homage to its favorite son, the most fearsome home run hitter of the dead ball era.

The only one-room schoolhouse remaining in Talbot County, Maryland.

The last remains of one of the oldest and largest oak trees in the United States calls this state park home.

This statue of two men in a rowboat was erected to honor those who died while fishing in the Chesapeake Bay.

The trials and tribulations of marking Poe’s grave.

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

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

This one-room cabin where the young colonel slept during the French and Indian War.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

A remarkable time capsule of American manufacturing deep in Maryland coal country.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

A living history village recreates a vanished 19th century community.

Electronic inventions that resulted in products and systems we use every day are on display in this labor-of-love museum.

Its diverse collection of computers and technology spans the ages.

A charming tour of the umbrella, tin-can, and drinking-straw capital of the world.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

At the birthplace of American railroading, a world-class collection of historic trains.

This small museum celebrates the history of the Ouija board and its connection to the city of Baltimore.

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