The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

This historic sunny-yellow building has an unfortunate connection to the sinking of the Titanic.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

One of the first intercontinental ballistic missile sites in the United States.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

The 28,000-year-old specimen is remarkably intact.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

An exotic wildlife habitat right off The Strip.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

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

Less a museum than a bizarre fantasy world created by artists and engineers.

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