This too-low North Carolina railroad trestle is still a notorious big rig executioner.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This tower was once used to create ammunition for early settlers.

Zipline through the deepest canyon in the eastern United States.

These early tent-shaped grave coverings are unique to Appalachia.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

This work of folk art was produced by Gregory Warmack but the artifacts cemented in place are communal.

This stunning home looks like it belongs in medieval Europe, not North Carolina.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

A former hospital is now home to a pizza parlor and maybe a few ghosts.

Some islands... they come, they go, especially on Lake Travis.

A modernist landscape of water and sci-fi concrete.

This downtown Dallas art installation is always on the lookout.

This sculpture of a bowler hat is complemented by a matching umbrella a few blocks away.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

A small museum dedicated to the king of Western swing.

Welcome to a starkly beautiful sanctuary where the buffalo roam.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

Whether or not you take the 72-ounce steak challenge, there’s plenty of history, fun and Texas-style food at this legendary stop along Route 66.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

The final resting place of the most famous outlaw in the Old West.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."