Beautiful city with a rich history and plenty of landmarks. Not many tourists because it is overshadowed by Pisa.
Recommendation - Use Pistoia as your base of operations to see Pisa and Florence
Pistoia is just south of the Appenines for those that enjoy good hiking.
Recommendation - Go to Futa Pass and hike the divide.
"World War II"
For you history buffs, the region is loaded with relics from the Northern Appenine Campaign particularly along the Gothic Line of German Defenses.
Recommendation - Travel to Riva Ridge and see where the 10th Mountain Division "Climbed to Glory". Also stop by the site where Bob Dole was injured while saving a comrade.