Assisi, a medieval city built on a hill, is the birth­place of Saint Fran­cis, close­ly asso­ci­at­ed with the work of the Fran­cis­can Order. Its medieval art mas­ter­pieces, such as the Basil­i­ca of San Francesco and paint­ings by Cimabue, Pietro Loren­zetti, Simone Mar­ti­ni and Giot­to, have made Assisi a fun­da­men­tal ref­er­ence point for the devel­op­ment of Ital­ian and Euro­pean art and archi­tec­ture.