Ilocos Sur Provincial Library

Before becoming a library, its building served as Vigan's jail in 1657, and became Ilocos Sur's provincial jail complex in 1855.^[2]

In 1890, Philippine president Elpidio Quirino was born inside the jail complex when his father served as jail warden. In 1948, a section of the jail complex was converted into a provincial library, and named after Quirino's mother, Gregoria Rivera.^[3] The building ceased functioning as a jail on June 30, 2014. ^[2]

The Old Carcel building, together with the neighboring Padre Burgos Museum and the Magsingal Museum, currently form the NM Ilocos Regional Museum Complex (National Museum Ilocos).^[2]

The Philippines Historical Committee, a predecessor of the National Historical Commission of the Philippines, installed a historical marker in 1949.^[3]