Reconnect with your spiritual side and mingle with worshippers at Church of San Polo. Quietly reflect outside for a few moments or ask if you are allowed to join the next service.
You'll have sightseeing choices galore in Venice City Center. Church of San Polo is a great place to kick off here, but there are numerous other fine attractions to consider. Rialto Bridge, St. Mark's Basilica, and St. Mark's Square are near the house of prayer and will fill in your day nicely.