Khemissa, ancient Thubursicum Numidarum, is a 65-hectare Roman and Byzantine archaeological site in northeastern Algeria's Souk Ahras Province. Originally a Berber Numidian settlement, it was elevated to a municipium by Emperor Trajan around 100 AD and achieved colony status in 270 CE. The site features one of North Africa's best-preserved Roman theatres (2nd-3rd century), the Arch of Trajan, baths, a judicial basilica, and an aqueduct. Saint Augustine visited twice (397-398 CE) to mediate disputes between Catholic and Donatist factions. Major excavations occurred in 1877 and 1903-1905.
Théâtre Romain Khmissa (Ancient Thubursicum, Roman Theatre)

| Type | Megalithic stones |
|---|---|
| Period | 1 - 500 AD |
| Country | Algeria |
| Coordinates | 36.1939° N, 7.6559° E |
Algeria