The Constantine Regional Theater is considered one of the oldest buildings in the city, and it is the source of fine art, as it presents many theatrical and lyrical works for many international groups, such as the play “The Cockroach’s Ego,” the play “The Color Revolution” for children, “Shadow the poem” and “La Tahbi,” and Trio Maven, Macbeth, and the play Ya Lil. This theatre, whose construction began in 1861, was inaugurated on October 6, 1883. It was designed by the architects Jean Guillaume (1838-1898) and Jean Monnet. The Constantine Theater, with its paintings, figures, sculptures, and decor, reflects the style associated with the historical concept of Italian theatre. In addition to the ancient stairs, marble balconies, and wonderful artwork.