A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

A pink and gray pair of pachyderms advertise a fireworks shop.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

The site of the one and only battle of Lord Dunmore's War.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

One of Cincinnati's greatest fighters once trained at a now defunct gym in this Over-The-Rhine neighborhood.

The oldest brick house in the state of Ohio.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

This forgotten boat elevator was an engineering marvel in its heyday.

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

A derelict bit of transportation infrastructure hidden in the woods.

The span is crooked and made from two older recycled bridges.

A public art jibe at one of the United States’ oldest and longest-serving senators.

The school tested mustard gas for the U.S. Army during World War I.

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

A super-sized promotional trick that is now a D.C. landmark.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

A giant time capsule not scheduled to be cored until 2040.