Introduction to the Library of San Marco: The Library of San Marco is located in Piazza San Marco in Venice, Italy. It is a 16th-century building and a masterpiece left by the famous architect Sansovino in Venice, so this library The pavilion was named after him. When building it, Sansovino chose a long and narrow strip of land to build it, and adopted the same double-story arcade structure as the main residence, only slightly lower in height. This long arcade with classical columns is simple and long-lasting. It has now become a public place for shade and leisure.