George Lucas filmed Tatooine in southern Tunisia — the name comes from the real town of Tataouine — and the Mos Espa sets still stand near Tozeur.
The El Jem amphitheatre, almost as vast as the Colosseum, held 35,000 spectators in the 3rd century.
Sidi Bou Said at sunrise, the Tunis medina in the afternoon. An eSIM helps: Bolt in Tunis, offline maps for the desert south and Google reviews for the medina's best tables.