This long cavernous building of stone and brick serves as a storehouse for collected goods. Tall stacks of crates, piled casks, bales of wool, rolls of fabric, heaps of baskets and other items have been organized in rows running the length of the building. The stones of the floor have been etched with rectangles—each assigned a letter and number—apparently part of a management system. There must be a logbook somewhere that records it all.