The red brick house where the father of rock 'n' roll wrote some of his classic hits.

One of the world's earliest skyscrapers.

A plaque on the side of a parking garage marks the burial place of a great Ottawa chief.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This unassuming riverbank is Missouri’s first designated site in the National Underground Railroad Network to Freedom.

A unique museum dedicated to the Gullah-Geechee people, housed within an old oyster cannery.

Ruins of a Carnegie family mansion on Cumberland Island.

Mariners once used this prehistoric landfill as a navigational landmark.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

A winding district gerrymandered into the shape of a mantis.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

His discovery kicked off the Gold Rush. One of the hands on this commemorative statue points to the spot where he found the precious metal.

10,000 flowered plants bloom in the City of Roses.

The magic's in the hole!

This small interfaith chapel lies not far from the rim of the Grand Canyon.

This Native American settlement dates back to the Pueblo II period.

The cluster of boulders near Fort Irwin is covered in military insignia.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The world's longest known cave system.