The fal'Cie sculpted Cocoon in antiquity, using resources harvested from the world below. When Cocoon's shell was fractured in the war, they repaired it with raw materials again gathered from Pulse—buildings chief among them. Remnants of these structures, termed Vestiges, can still be found throughout Cocoon today. The centuries-old Vestige outside of Bodhum was believed to be nothing more than a harmless curiosity.