The ancient Roman forum, where Julius Caesar stopped after crossing the Rubicon (as a statue and a memorial cippus testify it), it had been a market-place for centuries; later on, it was called 'Piazza Tre Martiri' in memory of the three young partisans executed here on 16th August 1944. A marble insert indicates the spot.
It has been recently upgraded through very accurate works of paving and with mood lighting. 
Along the way it is possible to see part of the rests of the ancient roman pavement in enclosed openings.
On the east side is the Torre dell'Orologio (the Clock Tower) dating back to 1547, reconstructed by Buonamici and restored in 1933. The clock face has a solar-lunar calendar dating from 1750.
Beneath the clock tower a War Memorial.

It is still today the town centre with shops, offices, coffee bars and pastry shops.