Zaghouan is located below the northern slope of a Djebel. Known for its natural mineral wealth and especially for its outstanding thermal springs, this originally Berber town fascinated the Romans who baptised it Ziqua before it was occupied by the Andalusian refugees in 1609.
On the mountain south of the city is the Roman water temple Djebel Zaghouan, source of an aqueduct which used to take water to the city of Carthage over 100 km away.