Tortolì developed around the small Piazza Roma; its current appearance dates back to the 19C. Its vocation as a tourist destination began in 1969, bringing about intense real estate speculation. The main church, Sant'Andrea, dedicated to the town's patron saint, has a looming tower (approximately 20m). Built in 1100, it became a cathedral in 1824. Not far from there, the pretty little Sant'Anna church, is dedicated to the patron saint of women who have just given birth.