Resumen
The city tourism has become a subject of growing interest in tourism research, in a dynamic sector and with a particularly complex behaviour. In this scenario, the management of available information turns out to be difficult. Until now, specialized literature in tourism has been focused on general analysis, but down to a higher level of disaggregation (cities), presents a greater complexity. This paper aims to classify cities declared World Heritage by UNESCO on the basis of information available, by applying a multicriteria decision aid method: The Promethee.