It can be interesting to look into different belief systems. A visit to La Merced Church is a fantastic way to appreciate a part of the local way of life.
When you've finished at this Salta house of prayer, why not make your way to Virgen de los Tres Cerritos Sanctuary, San Francisco Church and Convent, and Museum of High Altitude Archaeology? They're close to La Merced Church and also popular with many travelers.