Roman Aqueduct Les Ferreres
The Aqüeducte de les Ferreres also known as Pont del Diable in Catalan, (Devil's Bridge) is a Roman aqueduct in Catalonia, Spain built to supply water to the ancient city of Tarraco.
The aqueduct is located 4 kilometers north of Tarragona, in the Autonomous Community of Catalonia. The aqueduct is part of the Archaeological Ensemble of Tarraco, which was added to the UNESCO's list of World Heritage Sites in 2000. The aqueduct took water from the Francolí river, 15 kilometers north of Tarragona. It probably dates from the time of Augustus. The aqueduct has a maximum height of 27 m and a length of 249 m, including the ends where the specus (water channel) runs atop a wall. It is composed of two levels of arches: the upper section has 25 arches, and the lower one has 11. All arches have the same diameter of 20 Roman feet (5.9m) with a variation of 15 cm. The distance between centres of the pillars is 26 Roman feet (7.95m).