Reconnect with your spiritual side and meet other worshippers at Church of San Michele. Explore outside for a while or ask if you're able to join the next service.
When you've finished up at this house of prayer in Carmignano, why not check out Villa Medicea di Poggio a Caiano, Hidron, and Casa Natale di Leonardo? They're not very far from Church of San Michele and also popular with travelers.