The city of Assisi, the Basilica di San Francesco, the Basilica di Santa Maria degli Angeli and other Franciscan sites, with almost all of the township, constitute a World Heritage Site. The registration, which took place in 2000, is based on the recognition of a uniqueness of “cultural landscape” consisting of material and immaterial assets. Five criteria (the six covered by the 1972 Convention) have been met:
(i) Assisi represents an ensemble of masterpieces of human creative genius such as the Basilica di San Francesco, a fundamental reference for art history in Europe and in the world;
(ii) The diffusion of the artistic and spiritual message of the Franciscan Order has significantly contributed to the development of art and architecture in the world;
(iii) Assisi is a unique example of continuity of a city sanctuary in its natural environment from its Umbrian-Roman and medieval origins to the present day, represented by the cultural landscape, the religious ensembles, the communication systems and the traditional land use;
(iv) The Basilica di San Francesco is an outstanding example of a type of architectural ensemble that has significantly influenced the development of art and architecture itself;
(vi) Assisi, the place of birth of the Franciscan Order, has been closely associated since the Middle Ages to the cult and spread within the Franciscan movement in the world, conveying a universal message of peace and tolerance even to other religions or beliefs.