The National Archaeological Museum of Olbia is one of the places to see in the Sardinian commune. The exhibition area illustrates the history of the city of Olbia, the "happy city" of the Greeks, crossed by different civilizations, from the Phoenician, to the Greek, to the Roman.
https://www.geoplan.it/luoghi-interesse-italia/monumenti-provincia-olbia-tempio/cartina-monumenti-olbia/monumenti-olbia-museo-archeologico-nazionale-di-olbia.htm