The Cagsawa ruins (also known as Kagsawa or Cagsaua) is the remnants of a 16th-century church in Albay (Bicol region). Some genius built the Cagsawa a mere 11km to the South of Mayon, an active stratovolcano.
Today, the church’s bell tower is the only remaining structure left at the national park after the massive 1814 eruption of Mayon. The converted ruins are a favorite park where local festivals take place. The ruins are a tourist draw as the area has many Mayon-themed activities surrounding it.
The structure has stood for the past 200 years but will (eventually) succumb to earthquakes and eruptions of Mayon – a testament to the dangers of living in such proximity to an active volcano.