One day
Start in the old town — the Piazza Collegiata, the arcaded streets and (on a Saturday) the market — then take the lift up to Castelgrande for the towers, museum and views. Walk the ramparts and the slope to Montebello, and up to Sasso Corbaro for the widest panorama. Have a polenta-and-merlot lunch at a grotto or osteria, and end with a riverside stroll or an early trip toward a valley.