 The cathedral has four façades which contain portals flanked with columns and statues . The two bell towers contain a total of 25 bells . The tabernacle , adjacent to the cathedral , contains the baptistery and serves to register the parishioners . There are two large , ornate altars , a sacristy , and a choir in the cathedral . Fourteen of the cathedral 's sixteen chapels are open to the public . Each chapel is dedicated to a different saint or saints , and each was sponsored by a religious guild . The chapels contain ornate altars , altarpieces , <unk> , paintings , furniture and sculptures . The cathedral is home to two of the largest 18th @-@ century organs in the Americas . There is a crypt underneath the cathedral that holds the remains of many former archbishops . 
