Not a terribly exciting photograph unless you're an architectural historian but I wanted to include it anyway since it shows an important traditional construction method found extensively throughout Syria and Jordan. Because good quality timber was always in short supply, stone beams have been used extensively for roof/floor construction since Roman times.
Roughly cut corbels built out of the walls support stone beams about 8' long about and about 1' wide. Space in between are filled with smaller stones and then bedded down with clay mixed with straw. As well as avoiding the need to import expensive timber, the stone gives excellent insulation, keeping the rooms below cool in the summer heat.