Norias of Hama, are group of large water wheels located along Orontes River in Hama, Syria. These wheels are also known as Hama Wheels or Hama Norias and are considered to be one of most impressive examples of traditional water-raising technology.
Constructed during 14th-15th Century CE, some estimates suggest they may be even older. Wheels were used to lift water from river to nearby aqueducts and irrigation systems, which were used to water crops and provide drinking water for people of Hama.