Hama, Syria, July 23, 2018. Families take a walk near the Norias on the Orontes River in the city of Hama, Central Syria. The Norias are wooden water wheels propelled by the water flow. Farmers used norias to raise water from the Orontes to a higher point to transport the water through channels to irrigate agricultural fields. There are 16 norias in the city of Hama after a noria was removed two years ago and other norias were removed in previous centuries. The rest of the norias are classified into five groups, including the al-Bashariat, the al-Jisriat, the al-Kailaniat, the Northern Citadel, and the Bab al-Nahir.