Above the Piazza della Signoria, at the highest point of the town, is the Palazzo Ducale, erected by the dukes of Urbino in 1474-1480; the architect was, in all probability, Lucio da Laurana, to whom is due the palace at Urbino, which this palace resembles, especially in its fine colonnaded court.
The post office is a handsome sandstone building in Renaissance style; it is colonnaded on two sides with polished granite columns and surmounted by a clock tower, containing a peal of bells.
It is an old town, with narrow irregular colonnaded streets and some interesting old frescoed houses.
The town has many good pre-Renaissance buildings; the picturesque colonnaded market-place contains the fine Gothic church of S.
The plan of the temple may be supposed to have included a colonnaded court in front of the present facade, and pylon towers at the entrance; but these were never built, probably for lack of funds.