- The Miag-ao Church, also known as the Sto. Tomas de Villanueva Church in Miag-ao, was built in 1786 by Spanish Augustinian missionaries
- It was declared as part of the UNESCO World Heritage Site "Baroque Churches of the Philippines" in 1993.
- On the front facade, which is flanked by two watchtower belfries, one can see the unique blending of Spanish and native influences.
- The central feature of the bas-relief facade is a large coconut tree which reaches almost to the apex.
- While an integral part of the Philippine landscape, the coconut tree is also the subject of lore. According to an old Philippine legend, the coconut tree was the only bequest from a loving mother to her two children, a tree which sustained them for life. On the church's facade the coconut tree appears as the "tree of life" to which St. Christopher carrying the Child Jesus on his shoulder is clinging to.
- The lesser facades feature the daily life of Miagaowanons during the time.
- Also depicted are other native flora and fauna, as well as native dress.
- The church and its watchtowers were also built to defend the town and its people against raids by the Moros. It therefore has thick walls and, reportedly, secret passages.
- Indeed, stretching along the Iloilo coast are defensive towers, but none that equal the size of the Miag-ao. It is because of this defensive purpose that it is sometimes referred to as the Miag-ao Fortress Church.