South of the city of Tunis is the picturesque mountain of Zaghwan, approximately 4000 ft.
North-east of Zaghwan, and nearer Tunis, is the Jebel Resas, or Mountain of Lead, the height of which is just under 4000 ft.
The principal Roman and other ruins in the regency are the aqueducts near the capital (Tunis) and the temple at Zaghwan, described under Tunis city; the great reservoir near Carthage (q.v.); the amphitheatre at El Jem (see SusA); the temples and other ruins of Sbeitla (q.v.); the ruins of Dugga, near Tebursuk, in the north-west of the regency (the amphitheatre of Dugga, the ancient Thugga, is a magnificent spectacle); the baths, amphitheatre and temples of Feriana (the ancient Thelepte); the whole route between Feriana (which is in the south of Tunisia, 33 m.
A branch line to Bizerta (432 m.) from Jedeida on the main Algeria-Tunis line was also built as well as one from Tunis to Zaghwan (44 m.).
A short line, branching from the Tunis-Zaghwan line, was carried south-west to Pont du Fahs.
Water is supplied to the city, with its numerous fountains, from Jebel Zaghwan (vide infra) by the Roman aqueduct repaired, at a cost of half a million sterling, by the bey Mahommed al-Sadik (d.
Environs: The Bardo Palace, Zaghwan, eec. - The environs of Tunis are picturesque and afford many beautiful views, the finest being from the hill on the south-east, crowned by a French fort, and from the Belvedere already mentioned.
South-east of the city, along the valley of the Wadi Melain, are hundreds of large stone arches, magnificent remains of the Roman aqueduct from Zaghwan to Carthage.
At Zaghwan (38 m.
Between Zaghwan and Tunis, and accessible by the same railway, is Wadna, the Roman Uthina, where, besides numerous other ruins, are the fairly preserved arches of a large amphitheatre.