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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

A massive volcanic plug is now a protected area that hosts a number of bird species.

It took 82 years and four different plaques to finally get the story right.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

This is why we can't have nice things on the Incan Trail.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

This natural wonder is disappearing at an alarming rate.

This remarkably well-preserved Incan city managed to survive the conquistadores.

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

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

Turning night into day in Victorian-era Austin to thwart a serial killer.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The juke joint where legendary soul artists ate, drank, and made merry.

Carved faces add a touch of magic to this island's impressive oak trees.

The show's fictional Korean medical camp was created in the Santa Monica hills.