Reconnect with your spiritual side and mingle with worshippers at Templo de San Francisco. Quietly reflect outside for a while or find out if you are allowed to join the next service.
You're spoiled for sightseeing choice when in Querétaro. Templo de San Francisco is a good place to start here, but there are plenty of other fine sights to experience. Antea Lifestyle Center, Querétaro Industrial Park, and Plaza Juriquilla are near the house of prayer and and will cap off your day nicely.