It's interesting to delve into different belief systems. An outing to Chiesa di San Rufo is a fantastic way to learn about one of the local religions and cultures.
You'll be spoiled for sightseeing choice when spending time in Rieti. Chiesa di San Rufo is a good place to start here, but there are many other interesting attractions to appreciate. Palazzo Vescovile, Golf Club Centro d'Italia, and Cammino di Francesco are not far from the house of prayer and will fill in your day nicely.