Orbiel Aqueduct
The Orbiel Aqueduct is one of several aqueducts on the Canal du Midi. Until its building, the canal crossed the River Orbiel on the level. A dam on the Orbiel was demolished and replaced with the Aqueduct. It was built in 1686-87 by and designed by Marshal Sebastien Vauban, It is found in the city of Trèbes.