Aqueduct (detail)

The Aqueduct of Setúbal, is an aqueduct that had its beginning in Arca d'Água (Alferrara), and ended in the center of the city of Setúbal.

Built at the end of the 15th century, during the reign of King João II, it extended for several kilometers, from the source to the city walls.

(in, Wikipedia)

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