Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

This historic lighthouse was well known for the large number of women who served as its keeper.

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

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

Historic home of America's sweetheart sharpshooter, Annie Oakley.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones’ locker.

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

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

The whole world in one water tank.

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

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

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

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Built by the patriotic residents of Boonsboro in a single day.

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.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

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

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

A priceless collection of the Nation's cryptologic history.

The land is home to swimming ponies and a legendary 18th-century treasure.