Leptis Magna was a punic and then roman settlement. Septimius Severus (145 – 211), Roman Emperor from 193 to 211, was born in this town. Leptis Magna: in the past was known as the "Town of white shadows", a name due to the white statues appearing and disappering amid the dunes of sand. The city had temples, a theatre and an amphitheatre, with a profusion of decorations and statues.
Leptis Magna’s market is a particularly well preserved example of such structures of a Roman city. In fact, many of the features of this market are unique. Along with typical porticoes of shops, the structure had two central circular stalls. The system used by stall holders for measuring the quantities of goods was still found in the market.
"The Roman food market of Leptis Magna was built in 8 BC by a wealthy citizen Hannibal Tapapius Rufus. The evidence for this comes from two inscriptions: one in Latin over the entrance of the market and another in neo Punic on the architrave of one of the market’s circular central stalls."
http://www.suite101.com/content/the-market-place-leptis-magna-a138237
For a web tour in this town, see for instance