& Church CAGSAWA RUINS & CHURCH The  Cagsawa Ruins  (also spelled as  Kagsawa  or  Cagsaua ) are the remnants of an 18th century  Franciscan   church , the Cagsawa church, built in 1724 and destroyed by the 1814 eruption of the  Mayon Volcano . They are located in  Barangay  Busay, Cagsawa,