The Arch of Caracalla stands at the southern end of the main street of the Roman town, marking the transition between the old forum quarter and the later southern expansion. Erected in 216 AD when the emperor Caracalla visited the province of Numidia, it is a triumphal arch of the standard Roman type: three openings, with the central passage wider than the two flanking ones.
The arch is remarkably well preserved given its age — the stonework is crisp, the proportions are elegant, and it frames a long view back up the cardo (main street) towards the older parts of the city. In the morning light, the creamy limestone catches the sun beautifully.
Beyond the arch lies the newer southern quarter of the city, developed in the third century as Cuicul grew prosperous. This area contains the large Christian basilica and the baptistery — evidence that the town survived and continued to develop well into the late Roman period.