Its Roman theatre, together with its surroundings and the "Triumphal Arch" have been listed by the UNESCO as one of the World Heritage Sites (1981).
... average family size is 2.88. In the town the population is spread out with 20.6% under the age of 18, 5.0% from 18 to 24, 26.8% from 25 to 44, 27.7% from 45 to 64, and ...