This mostly abandoned shopping outlet is now adorned with beautiful graffiti and murals.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This giant temperature attraction created some giant electric bills.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

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

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

Located near the U.S.-Mexico border, this park remembers the famous raid of General Francisco “Pancho” Villa and his soldiers.

The "Father of Arizona" tried to build a Zoroastrian fire temple on the hill where he's now buried.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

The remains of a historic ranch house that witnessed the Civil War battle dubbed the “Gettysburg of the West.”

This small piece of railroad history sits behind the parking lot of a chain grocery store.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

A unique gallery chronicles the losers of American presidential history.

A museum chronicling pioneer life constructed over Interstate 80.

An obelisk commemorating Lincoln's role in connecting the coasts.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

This restaurant proudly displays bread signed by the 39th president.

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.