Balay na Santiago – this used to be a barangay hall, located at Calao West and now serves as a multi-purpose function hall for art and music exhibitions and different occasion. The building itself is of the bahay-na-bato style popular during the Spanish colonial era.

Calvary Hills and The Chapel of Transfiguration – located at Dariuk Hills, Balintocatoc. The place offers a pilgrimage venue for the Holy Week where life-size Stations of the Cross are presented from the foot of the hill going all the way up to the top where a Chapel was so designed to face the rising sun. The Chapel of Transfiguration offers pilgrims a commanding silence befitting a place of worship and can also be utilized for masses and retreat venues.

Santiago Concrete Water Tank (Philippines’ Tallest Mural) – This concrete water tank has been a landmark in Santiago City since the early 1970s. It is almost 30 meters high, and towers over the whole city, visible from almost anywhere. It was constructed through the help of then Congressman Delfin Albano of the lone district of Isabela, and under the leadership of then Mayor Dodo Miranda. It was turned into a colorful mural and is now considered a City Heritage Treasure.