PHILIPPINIANA SACR, Vol. LI, No. 153 (May-August, 2016) pp. 489-535. Historic Visual Images of the University of Santo Tomas in Intramuros, from the Archivo de la Universidad de Santo Tomas Regalado T. Jose Archives, University of Santo Tomas, Manila, Philippines A proper architectural history of the building mass that was the University of Santo Tomas (UST) in Intramuros, the walled city of Manila, still has to be writen. In aid of this, a treasure trove of rare photoraphs, maps, plans, and book illustrations conserved in the University’s Archives is presented in this article. Many of the images are published for the frst time. Keywords: University of Santo Tomas, Intramuros, architectural history, archival photographs, maps, plans One location, several street name changes T he block that enclosed the old Intramuros campus of the University of Santo Tomas was bounded on the northeast by the present Solana Street; on the southeast by Santo Tomas Street; on the southwest by the Ayuntamiento building, also known as the Casas Consistoriales; and on the northwest by Aduana (renamed Andres Soriano) Street. In accordance with Philip II’s Laws of the Indies, the checkerboard plan of the walled city of Intramuros was oriented diagonally to a north-south axis, so that at any time of day while one side of the street was warmed in sunlight, the opposite was cooled in shade. Tus, both the principal and secondary façades of UST greeted the rising sun, whose rays