When you've finished with the main sights, you might want to visit other attractions like San Domenico, near Piazza Garibaldi (the first square in town you come to by car or bus), with its faded Fra' Angelico under glass above the door and Luca Signorelli's Madonna and Saints (1515) to the left of the altar. The 15th-century altarpiece by Lorenzo di Niccolò Gerini is a cross between a Gothic composition and a classic early Renaissance style, plus -- unlike many large altarpieces across Italy that have been broken up over the ages -- it's completely intact, pinnacles, predella, and all.