Built in 1661, the Estacion de Guiguinto (Guiguinto Train Station) is the towns most acclaimed historical landmark and heritage site. It was upon this that the Katipuneros (Filipino guerillas during the Spanish Regime) ambushed a train from Dagupan, killing six friars, including the parish friar of Guiguinto, Fr. Leocadio Sanchez, and the Spanish doctor. The incident inspired Severino Reyes to author the novel "Opera Walang Sugar" which was later made into a movie entitled "Walang Sugat." - source: www.bulacan.gov.ph