The capital of Emilia-Romagna is a thriving town with a certain patrician atmosphere to its beautifully-preserved historic center lined by loggias or arcade-covered sidewalks, 21 miles of them.
Each year, the town closes down for three days for religious festivities. 
mnli hypothesis: Each year, the town closes down for three days for religious festivities.  premise: The capital of Emilia-Romagna is a thriving town with a certain patrician atmosphere to its beautifully-preserved historic center lined by loggias or arcade-covered sidewalks, 21 miles of them.