Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Canyon walls shrouded in ferns.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Life-size figures portray depot attendants, train crew, and passengers frozen in time at the oldest railroad station in Arkansas.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

A motel dedicated to Southwestern nostalgia.

See massive fossils that are over 200 million years old in northeastern Arizona.

Most-visited and most-photographed slot canyon in the American Southwest.

A sharp bend in a dramatic river canyon cut through red rocks.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

The first declared National Monument in the United States.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Strange physical sensations and optical contradictions keep visitors coming back for more.

World's largest Christmas store.

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

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.