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<<<<This aqueduct at Nerja, south of Spain is still in use! It consists of 4 levels with a total of 38 arches. 

The aqueduct to the right was providing the lands of the abbey of Saint-Polycarpe (Province Aude/France) with water. The abbey is known since 780 aD.



 A rotating boat lift, the Falkirk Wheel connects two canals (Forth & Clyde canal + Union canal in England) with each other (difference in hight is 35 m!). Formerly they were connected by 11 locks, but when commercial canal use was abondoned in the first half of the 20th century many canals became derelict, were used as dumping rounds and many stretches were filled in.