If you’ve visited churches like the Duomo in Florence or the Basilica in Venice, you’ll be disappointed with Gaiole’s main church, the Chiesa di San Sigismondo.  A smaller (and older) church sits on the hill above Gaiole, Santa Maria a Spaltenna (in the Castello di Spaltenna hotel).  At the time of writing, it’s closed for restoration, but you can still see it from the outside. Another nearby gem is the Badia a Coltibuono (Abbey of the Good Harvest), an 11th-century abbey that can be visited or just admired from the outside.