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

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

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

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

Rippling sand dunes frozen in the Arizona rock.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Version of the French Riviera destroyed by the sea.

The ghostly remains of an accidental sea.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A wall of chewing gum moonlights as collective art.

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

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

Bits and pieces from the ill-fated Donner Party's winter cabins.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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

Towering basalt columns, a creation of fire and ice.

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

Eons old volcanic activity created one of the most stunning rock formations in the United States.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Quite simply the largest tree in the world (by volume).