Ischigualasto Badlands

Better known as the Valley of the Moon, Ischigualasto is a desert of wind-carved rock formations in the province of San Juan. Its Triassic sediments hold some of the oldest dinosaur fossils ever found, and the landscape — pale clay, sudden spires, and near-total absence of vegetation — looks like nowhere else in Argentina. It shares its UNESCO World Heritage listing with Talampaya.