Henchir-el-Kermate is a location in Tunisia and set of Roman Era ruins.
 The ruins are in a square shape, with perimeter of 500 meters round the enclosure.
 The remains of a small temple or mausoleum.
 There are also traces of a pont bridge, Cisterns. and several illegible inscriptions.
Sutunura was a Roman era civitas in the Roman province of Africa and is tentatively identified with ruins near Aïn-El-Askerm, Rdir-Es-Soltan in modern Tunisia.
(36° 34' 29" North, 9°59'29"East) 50 km from Carthage.
 The location being confirmed with inscription remains in situ and is nearby to Koudiat es Somra, Jebel Barrou and Ghedir Soltane.
A cistern (Middle English "cisterne ", from Latin "cisterna ", from "cista ", "box", from Greek κίστη "kistê ", "basket") is a waterproof receptacle for holding liquids, usually water.
 Cisterns are often built to catch and store rainwater.
 Cisterns are distinguished from wells by their waterproof linings.
 Modern cisterns range in capacity from a few litres to thousands of cubic metres, effectively forming covered reservoirs.
Henchir-El-Msaadine is a Roman era set of ruins near Tebourba(Ancient Thuburbo Minus) in modern Tunisia, North Africa.
 The site is outside of Tunis.
Cincari was a Roman era civitas of Africa Proconsularae a town which has been tentatively identified with the ruins of Henchir Tengar in today's northern Tunisia.
 The ruins at Bordj Toum have also been proposed as an alternative for the town.
Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing.
 Glaze can serve to color, decorate or waterproof an item.
 Glazing renders earthenware vessels suitable for holding liquids, sealing the inherent porosity of unglazed biscuit earthenware.
 It also gives a tougher surface.
 Glaze is also used on stoneware and porcelain.
 In addition to their functionality, glazes can form a variety of surface finishes, including degrees of glossy or matte finish and color.
 Glazes may also enhance the underlying design or texture either unmodified or inscribed, carved or painted.
Henchir-Madjouba is a locality and archaeological site, near the headwaters of the Medjerda River in Tunisia, North Africa.
 It is located at 8.50238n, 35.80905e.
 The site is tentatively identified with the ruins of the Roman era town of Tituli.
 which was a civitas of the Roman Province of Roman North Africa.
El - Harairia is a suburb of Tunis, Tunisia located at 36.781395, 10.115375 in an outer western suburb of Tunis, Tunisia, North Africa.
 El Haraitria is also the site of Roman era ruins of Ad Pertusa, a Roman Civitas that flourished between 30 BC - AD 640.
Theudalis, also known as Teudali, was a Roman era civitas (town) of the Roman province of Africa Proconsularis.
 The ancient city is tentatively identifiable with ruins at Henchir-Aouam in Tunisia.
Sululos was a Roman era Municipium of the Roman province of Africa Proconsularis that flourished from which flourished from 30 BC - AD 640.
 The ancient town was officially known as Municipium Septimium Aurelium Severianum Apollinare Sululitanum and is tentatively identified with ruins at Bir-el-Heuch, (Bir-el-Ach) 36.461372, 9.605158 in what is today Tunisia

Question: Henchir-el-Kermate is a location in Tunisia and set of Roman Era ruins, there are also traces of a pont bridge, and which waterproof receptacle for holding liquids, often built to catch and store rainwater?
Answer: Cistern