The historic center is a maze of paved alleys where stone palaces, churches and works of art follow one another; Piazza Garibaldi is home to the Cathedral of San Cerbone, built between the 12th and 13th centuries in Romanesque-Gothic style, with numerous fine works inside; also not to be missed are the church of San Francesco and the Museum of Sacred Art.

Massa Marittima is an important art center, home of the Lûdici Mâssei, a festival dedicated to music and theater: every year in May there is the Massa Marittima in Fiore event, during which the entire village is decorated with floral arrangements. The village is easily reached by car or bus from Follonica and is a short distance from the beaches of the Tyrrhenian coast, and there are many agritourisms and restaurants where you can enjoy typical Maremma dishes based on local game, cheeses and vegetables.

Various itineraries for hiking in the Colline Metallifere and surrounding woods depart from Massa Marittima: a recommended stop is the myrtle mine, where guided tours are available. For birdwatchers, the Lago dell'Accesa Reserve is home to several species of birds, including flamingos and black-winged stilts.