We see a bird's-eye view image of the sandy and rocky desert of northern Peru. Running diagonally in the photo is a high stone wall. An ancient desert wall in northern Peru was built to protect ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Etchings of camels and other animals found on ...

A newly built segment of border wall in southern Arizona will keep out more than just illegal immigrants, a nonprofit conservation organization says. The border wall segment and a "paved road across ...