This Piazza is lined with palazzi of the former ruling families of Verona, many of which are bedecked with statues of famous men, hence the name "dei signori." Of course, the grandest of these luminaries is Dante, whose stern statue stands in the center of the square.
Notice the frescos on the Loggia del Consiglio, somewhat restored from the Renaissance. Enjoy the signature fish-tail battlements of the Scaligeri palace. The facades of the Palazzo del Capitano and Palazzo della Ragione (palace of reason, or justice court) are also noteworthy. Also not to be missed is the archeological cutaway to the old Roman street that led to here. It would be easier to drive than some of the city's present day picoli vicoli.
Grand arched entrances lead in and out of this square, the most notable of which is Arco della Costa, so named for the whale rib that hangs high above. This arch connects Piazza dei Signori with Piazza dell'Erbe, and is mentioned as a meeting place in Romeo and Juiliet.
From here, one is within spitting distance of the Arche Scaligeri and Torre dei Lamberti. There are a couple caffes that line the square, such as Caffe Dante Ristoratore. Grab a table outside for a wonderful al fresco lunch.