Castillo is located in Pitogo, Quezon, Philippines.

Built during the mid 17th century. The citadel or the locally known as Castillo served as a watching post to warn the early settlers against the attack of the ferocious and barbaric Moro sea pirates which frequently sail the Tayabas Bay area. Preserved in its original state and structure it now serves the Barangay hall. Citadel is one of the very few that is still existent. A true rare site in a must see place.

Source:

Tourism.qzn.ph