The criteria that determine whether a site can be included in the World Heritage list are few but very stringent.
On a cultural plane, the listed sites have to be masterworks, reflect the exchange of human values or signify an important –or unique—spot in the development of knowledge.
For their part, natural assets have to be eminent examples of the environmental and biological processes in the planet’s evolution and stand out for their biodiversity and conservation.
In this context, the Monastery and Royal Site of San Lorenzo de El Escorial
constitute a magnificent example of Humanity’s creative spirit; the dimension
of the architectural complex and its natural setting make this a place of
inexhaustible value.
Alcalá de Henares, in turn, presents key element for the knowledge and study of the Spanish language and and culture through two millennia of history.
Aranjuez is one ofthe best examples of a cultural landscape to be found in Europe.
Landscape of Light (Paseo del Prado)