chirschfield wrote:
I just returned from France and saw a great monument to the past called the Pont de Gard.
Its primary role was not as a bridge (not to be confused with Pont d'Avignon on the Rhone) but as an aqueduct.
It was built by the Romans to convey water to Nimes. It ran for 30 miles, took 20 years to build and was used for 500 years (until the decline of Rome). Where it crosses the Gard River in these pictures it is about 150 feet high.