Mass cultural events are organized mass celebrations that generate an impact in the city that produces them appropriating the place where are inserted. These festivities of traditional popular expression construct part of the models and the Organization of these cities. They represent a process of collective construction and social inclusion where cultivated its relationship with the inherited, nature and space. ICOMOS and UNESCO, say that the tangible and intangible heritages are united and intangible heritage is constituted by that invisible part that resides in the spirit of cultures itself. A system of urban cultural events can stimulate the economy of its urban centers, reaffirm their identity features and may be heritage of national culture. Urban and regional intervention strategies contribute to a vision and a comprehensive design of urban spaces, and lead to less impact to preserve the history of the place and the event.