10am-6pm (4pm in winter), Sun 11.15am-5pm (11.15am-12.15pm in winter)
The current building, an imposing Basilica in the shape of a cross, is the result of the transformation in the 15C of a church dating back to the previous century. The massive tower was only completed in the late 18C and gives you a panoramic view over the city. Inside the church, don't miss the astronomical clock (1472) - it includes a calendar that is valid until 2017. The delicate bronze work of the baptismal fonts also warrants your attention.