The first life claimed by this record-breaking peak wasn't lost to exposure or a fall but rather lightning.

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

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

"Only the devil could play golf here."

The ghostly remains of an accidental sea.

This California tree is the single source of the state's entire orange industry.

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

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Thousands of turbines whir at at the origin of North American wind power.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Decommissioned experimental solar facilities that pioneered solar energy technology.

This giant temperature attraction created some giant electric bills.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

When ecosystems collide in the arid Southwest.

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

An homage to everyone's favorite prehistoric cartoon family.

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.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Legends surround this jagged rock formation in the New Mexico desert.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.