A Numidian settlement, the best-preserved ancient Roman city in modern Tunisia, located near modern Tabursuq, west of the ancient road between Carthage and Theveste. It was a dependency of Carthage until the 3rd century AD. Thugga's most notable pre-Roman ruin is a 2nd-century-BC mausoleum, built in honor of a Numidian prince. It is a three-story building topped by a pyramid and the mausoleum contained a bilingual Phoenician and Numidian inscription. It represented a combination of the Egyptian pyramidal funerary building and the Hellenistic Greek temple. Thugga was made a municipium by the Roman emperor Septimius Severus (reigned AD 193-211), and an arch erected in his honor is one of the outstanding Roman remains. Other important buildings dating to Roman times include a forum, baths, villas, capitol, circus, temples, an aqueduct (and system of water cisterns), and a theater.