St. Gallen, Stiftsbibliothek, Cod. Sang. 1092 : Plan of Saint Gall

The Carolingian Plan of St. Gall is the oldest surviving architectural drawing of the Western world, and thus it is a monument of European cultural history. It consists of five pieces of sheep parchment, sewn together, and later folded to quarto format. On the front, there is an orginal plan of a monastery complex with 52 buildings, 333 explanatory annotations in Latin, and a letter of dedication.…