Museo de Pattaradday

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.

This used to be a barangay hall called Palacio del Barrio located at Calao West. Balay na Santiago houses the city museum and city library. This also 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.

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. A life-size image of Our Lady of La Salette also stands at the site, facing the City.

Opened in 1983, it was deemed the largest dam in Southeast Asia at the time and created a reservoir that displaced numerous communities in neighboring Ifugao. Since then it is one of the main sources of irrigation and electricity in the Cagayan Valley Region. The complex and its surroundings have become a favorite recreation spot for residents as well as day-trippers from Santiago. Fishing activities are also available at the reservoir.