Roman Aqueducts of Toledo

Remains of two Roman aqueducts that supplied the city of Toletum (modern Toledo) in Castile-La Mancha, Spain. The main aqueduct was a 38-kilometre canal fed by a 21-metre-high dam at Mazarambroz blocking the Guajaraz river. Built in the 1st-2nd centuries AD, the system may have used an inverted siphon to cross the Tagus gorge, a technology known from other Iberian sites. Only the base of the aqueduct bridge and scattered ashlars from the water conduit survive today.