The shared home of a utopian commune that practiced "free love" a century before the hippies.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

The only road through the heart of Glacier National Park.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

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

The Decoy Capital of the World.

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

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

One of the only memorials dedicated to journalists who died in combat.

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

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

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

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

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

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.

This abandoned sea fort has become an accidental bird sanctuary.