A true roadside icon standing on the same plains that the herds once roamed.

At a rest stop north of Seattle, the trunk of an ancient tree.

Thomas Dambo's troll sculpture wears a crown with birdhouses on his head.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This playground sculpture of an icon from the past is dedicated to the children of the future.

The decorations were inspired by an unlikely missing treasure.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

A replica that won't float away.

Dozens of rockets and missiles are on display outside a testing facility in the Utah desert.

A museum dedicated to the history and art of staying clean.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

A ceramic-tiled room at the Seelbach Hotel said to have secret tunnels used by Al Capone and a crowd that helped inspire F. Scott Fitzgerald's 'The Great Gatsby.'

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

A replica of the flagpole that gave a frontier town its name.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.