Among the major monuments to visit in Porto Rotondo, there is the "Outdoor Theater, designed by sculptor Mario Ceroli, and built by architects and Marina Sotgiu Gianfranco Fini. Made of granite rough Gallura, the work presents measurements of the same Mario Ceroli, and follows the classical models greek-roman.

The entire structure is semi-circular and has a wooden stage with a backdrop fixed in masonry: able to accommodate about 700 people, the "Outdoor Theater" in Porto Rotondo is located in the area in front of Piazza San Marco, and Opened 1995. Another place worth visiting is the Church of San Lorenzo, located near the Piazzetta San Marco, and reached by a staircase of 35 steps that lead directly from the square to square.

Made by Andrea Cascella, Mario Ceroli and Gianfranco Fini, the Church has the shape of a hull of a ship overturned, and inside there are representations of historical figures shaped in wood, created by Mario Ceroli the altar was made by Andrea Cascella. To visit finally, is the new bell tower 24 meters high, was made entirely of wooden houses bells dedicated to the elements of nature, air, land, water and fire. Designed by Mario Ceroli and Gianfranco Fini, Sergio Malgaretto developed by the architect, the tower is located behind the church of San Lorenzo.