A tiny red pebble marks what may be the quietest outdoor spot in the United States.

The highest point in Washington state is a volcano covered in glaciers.

Shoreline strewn with the remains of ghostly fallen trees.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

A 50-year old dive bar that has its own yacht club.

A giant Troll lurks under one of Seattle's oldest bridges.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

A unique botanical garden housed in three giant geodesic domes.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A bypass decorated with large wooden troll carvings.

A former barn converted into a massive train diorama.

More than 5,000 contemporary and "historic" mustards from around the world.

One Austrian's singular yard is now preserved as a folk art garden of concrete wonders.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

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

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

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

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

This soaring sculpture and Sioux Falls landmark represents the leap of faith taken to make one's dreams come true.

A fitting attraction for the corn capital of the world.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.