A relic of times where the Sunagakure wasn't surrounded in only sand. The Aqueducts used to carry water down from fresh water oasis at various points around the village and give the center a thriving environment. Now this ancient engineering feat is nothing more than the skeletal remains of the lost Sunagakure. Of course, it has been unearthed in recent times, and is most actively used as a battle ground or random entrance to one of the many buried treasures to be found beneath the village.