Known around the world as one of the historical symbols of the Western Mediterranean Sea, the archaeological site of Tharros was founded in the late VIII century B.C. by the Phoenician civilization. In 238 B.C., with the arrival of the Romans in Sardinia, the area underwent an important urban change with the construction of several buildings and roads.

Among the structures that can still be admired today, you can find the ruins of the Tetrastyle Temple, the Thermal Baths, the Tophet and the main Roman roads that once connected the intere city.

The church of San Giovanni di Sinis is one of the most important Christian buildings in Sardinia, together with the Basilica of San Saturnino of Cagliari and the church of Sant'Antioco in the homonymous village. The original Greek cross plant dates back to the 6th century A.D., during the Byzantine reconquest led by Emperor Justinian. Between the 10th and the 11th century A.D. the building was restructured with the adoption of a Latin cross plant still visible today. The religious worships dedicated to Saint John the Baptist and Saint Augustine are currently celebrated.

The Capanne di Falasco (falasco huts), called in local language barraccas de cruccuri, are linked to the world of fishing and served as a shelter for equipment and shelter for workers. Built with marsh grasses and at strategic points, they usually formed small villages, among many we remember those of Portu S'uedda, Mare Morto, Su Siccu and Torregrande.

Around the 80s, with the change of fishing areas, almost all the huts were demolished. Today few remain, some are private, while others have been rebuilt by the Marine Protected Area.