Torre del Mangia, Siena

There were close ties between Leonardo and the city of Siena and each left its mark on the other. The young artist frequented the cultural circles of the city and in this way was exposed to the work of the great Sienese engineers Mariano Taccola and Francesco di Giorgio, and to the classics of antiquity, both of which would prove to be of fundamental importance to his activities as a scientist, engineer and artist.
Leonardo mentions Siena many times in his notes and in turn Siena and artists such as Il Sodoma (Giovanni Antonio Bazzi) and Domenico Beccafumi would later draw inspiration from his work.