Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The rocks in this arid basin leave trails of movement behind them.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

At the time of its completion, it was the tallest dam in the world.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

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

An architect's childhood fantasy treehouse made real.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

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

A museum dedicated to the history and exploration of both popular music and science fiction.

A wall of chewing gum moonlights as collective art.

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

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

There's something big lurking beneath the surface of this tiny Oregon park.

Only known mainland rookery of the threatened Stellar sea lion.

This natural marble cave is one of only five national monuments in Oregon.