8,000-Year-Old Animal-Trap 'Blueprints' Reveal Scale of Ancient Engineering

Archaeologists found stone engravings in Jordan and Saudi Arabia that are possibly the earliest known plans for structures.
The engravings depict "desert kites," animal traps used to corral wild herds into pits, that date back 7,000 to 8,000 years.
The kites, which span over two football fields, display a sophisticated approach to engineering that is constrained by symmetry and dimensions.
Though the surrounding landscape is now desert, it was once greener and still beautiful.
The kites can only be fully seen from the air, highlighting the massive scale of the ancient structures.