The only road through the heart of Glacier National Park.

Roaming bison and a spectacular view at the highest point in Nebraska.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The highest point in Oklahoma used to be a lawless outlaw's paradise.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This erect, phallic geological spire wasn't always named so domestically.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The largest source of fossilized insects anywhere.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

This highest peak in New Mexico is named after an explorer who had a habit of lending his monicker to peaks.

A controversial memorial at the place where Captain Cook met his violent end.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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

Giant granite rocks standing end-to-end like a train of circus elephants.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Erosion and time have created a naturally-formed water park.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."