Unlike most Roman cities, Thuburbo Majus lacks the straight streets, the rectangular outlay. What remains of the city points in a direction of an organically grown settlement. Streets were often narrow, winding, and houses had few 90 degree angles. Even the two baths in this minor town, had irregular shapes. The site today is no more than 250 times 300 metres, and much of the best leftovers have been moved to the Bardo museum in Tunis.

Thuburbo Majus is still very much worth the visit, as many columns still stand, and one area has walls two metres tall, Openings indicate where doors have been, and inside one of the houses, a mosaic floor is in excellent condition, only broken by three well-kept columns in strong reddish colours.

The city of Colonia Julia Aurelia Commoda was established in 27 BC, as a veterans' colony, and served as a regional administrative centre. Its heydays lasted for about 200 years, and when it was rebuilt in the 4th century it was under the name of Thuburbo Majus. Today it is really only the layout that is left, but four columns of the Capitol has been restored. Thuburbo Majus is counted among the secondary Roman sites of North Africa.