You needn't be religious to appreciate the calming atmosphere of Catedral Metropolitana. Find out when the next service starts or when it's open for general viewing.
If you're staying a while in Zona 1, Catedral Metropolitana is a good place to start your sightseeing. This principal church is one of many attractions worth seeing here. Paseo Cayala, La Aurora Zoo, and Oakland Mall are also ready to be explored close by.