The Catedral is sometimes referred to as the Catedral Madre, as it was the first church built in the region. However, the original church was destroyed by fire, and the large building you see today was not completed until 1837. Until that year, Iglesia de Santa Bárbara did the honors as the cathedral. Once inside, have a look at the Last Supper in the right transept, and at an image of San Francisco de Borja with a skull in the transept opposite.