St. Agustine Parish Church
Iba, Zambales
The faith first came to the territory of the diocese in 1607 through the efforts of the missionaris of the Order of the Recollects of St. Augustine. They settled in Subic, Masinloc, Sta. Cruz, Iba, and Cabangan where they established the first centers of the faith. The administration of the faith in the province changed hands when the territory was transferred to the care of the Columban Fathers in 1951. The prelature of Iba was erected on October 18, 1955 as suffrage of the Archdiocese of Manila. The Most Rev. Henry Byrne was appointed the first prelate ordinary and he took ecumenical possession of concentrating on their work. On November 15, 1982, Iba was elevated to diocese. Upon the death of Bishop Byrne, the Most Rev. Paciano B. Aniceto, then auxiliary bishop of Tuguegarao, was appointed second bishop of Iba. On January 31, 1989, he was appointed Archbishop of San Fernando, Pampanga. The Most Rev. Deogracias Yniguez Jr. succeeded him on December 27, 1989.
San Andres Parish Church
Masinloc, Zambales
The Augustinian Recollects began construction on this church in the 18th century. It was completed in the 19th century, and has stood mostly intact until recently, when a strong earthquake inflicted extensive damage to the structure. The choir loft features a distinctively carved polychromed portal (Credit: NCCA). The church is made of adobe and was declared as a national cultural treasure by the National Museum in 2001.