One of two cities in the area, it left vast ruins that are now called (Henchir) Sidi Amara.

[3] A distinct Sidi Amara further north in Tunisia holds the ruins of the Ancient town of Avioccala, located in the Roman province of Africa Proconsularis.

The ruins of Aggar, whose identity is confirmed by inscriptions found there, include those of a triumphal arch opening onto a large porticoed area, with a temple behind it, which must have been the forum and the capitol.

About 1500 metres west of the town, the wadi Jilf was crossed by a bridge originally of ten arches, of which six remain.

[4] Aggar was among the many cities of sufficient importance in Roman North Africa to become a suffragan diocese of the Metropolitan of Carthage, in the papal sway, but faded, plausibly at the seventh century advent of Islam.