Walk up Via Ducale to the Via Federico da Montefeltro where you'll encounter a triumvirate of ancientness, beginning at the 13th-century pink cathedral , with a fine 12th-century stained-glass window and a fresco attributed to Bernardino Pinturicchio. Opposite, the 15th-century Palazzo Ducale was built by the Duke of Montefeltro's family as a scaled-down version of their grand palazzo in Urbino. Next door is the Museo Diocesano , an art gallery tracing 2000 years of ecclesiastical history.
