Capital of Gard, France, whose Roman remains include the Pont du Gard aqueduct (5)
I believe the answer is:
nimes
(Other definitions for nimes that I've seen before include "site of Roman remains in France" , "S. France city, Roman remains" , "French city with a well-preserved Roman temple and arena" , "S. French city, Roman remains" , "city in continental country" .)