This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

The longest living non-clonal organisms on Earth.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

All aboard the world's longest miniature railway.

This hotel has hardly changed in over a century, like a time capsule of old Oregon.

Each winter this underground cave forms a dazzling ice palace.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

A vertically floating hemlock controls the waves and weather at Crater Lake.

A showcase of engineering might that was also symbolic of westward expansion.

A unique museum where guests can rent and operate a locomotive.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

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

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

If it wasn’t for an innovative use of quilts during a crisis, the city of Panguitch might not exist today.

The current Eureka County Courthouse replaced an all-wooden structure that had previously been an ice-skating rink.

A statue commemorating the heroic life of a Viking postman who was the Godfather of California skiing.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

Singing sand that stands as the final remains of an ancient lake.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

The ruins of a military outpost from the 1860s form the centerpiece of a Nevada state park.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.