This 19th century granite fortification is one of the most well preserved forts in New England.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This Maine bridge may be the last wire-supported bridge of its type in the world.

New England's tallest light house stands on an island with a history of cannibalism and death.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

The grave of Mary Nasson is shrouded by witchy legends.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The crumbling remains of a 19th century fortess.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This two-room shotgun shack in Tupelo is the birthplace of a King.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

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America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

The only arched bridge made of stone on the entire Mississippi River.

This massive roadside mascot was the first version of the giant to illustrate his butt.