The natural and cultural traditional patrimony is the emblem and the inestimable treasure of every country or region. This includes the whole historical and cultural evolution linking by its individual space, confering its own territorial personality. Recognition, conservation and capitalization of the personality of each European territory with its natural potential and its cultural traditional heritage represent the real priorities in the fullfillment of the principle Unite on Diversity (for a world of difference). Putting together these apparently uncommon values, but respecting and sharing them as they are common means multiculturalism. Ecotourism is an important way for using and capitalizing cleverly and healthly this great potential based on principle of sustainable development and for advantage of every European citizen. Education of young people must refer to make them aware about those common values and developing a responsble and willing behaviour for respecting and consevating those common goods and capitalizing them for the future through ecotourism.