Parish Church of San Lorenzo Martire

The Parish Church of San Lorenzo Martire is located in the heart of the old town, in Piazza San Lorenzo

Its construction began in 1630, commissioned and financed by the Boncompagni dukes. The church features two towers: one serves as a bell tower, while the other houses a clock. The building is designed with a Latin cross plan and has a vaulted ceiling crowned by a dome supported by four large sails. These sails converge at the top to hold a smaller dome adorned with blue stained glass windows. On the central sail, a fresco depicts Our Lady of Loreto, the patron saint of the city, being carried in flight by angels along with her Holy House.
The apse is dominated by a large fresco representing the martyrdom of Saint Lawrence, painted by the artist Aurelio Marini from Velletri. In the side niches, two canvases by Ranaldi depict Saint Juvenal and Saint Bartholomew.