A boy arranges dried mud blocks at a traditional brick manufacturing site in Sanaa, Yemen Nov. 20, 2012.MOHAMED AL-SAYAGHI/Reuters
Workers work near the kiln. The bricks are used in the construction of houses due to their low cost.MOHAMED AL-SAYAGHI/Reuters
Workers stack dried mud bricks in a kiln for firing.MOHAMED AL-SAYAGHI/Reuters
Workers carry mud bricks to the kiln.MOHAMED AL-SAYAGHI/Reuters
The bricks are made using the same methods as the towering 16th century mud brick buildings in the ancient city of Shibam, in the southeastern Yemeni province of Hadhramout. Shibam is a UNESCO world heritage site.Khaled Abdullah/Reuters
Another view of Shibam.Khaled Abdullah/Reuters
At the brick manufacturing site, a worker adds a bucket of water to the clay and water mixture used to make the bricks.MOHAMED AL-SAYAGHI/Reuters
A worker shapes and arranges bricks before they are fired in the kiln.MOHAMED AL-SAYAGHI/Reuters
MOHAMED AL-SAYAGHI/Reuters
Boys transfer dried mud bricks to the kiln.MOHAMED AL-SAYAGHI/Reuters