San Cristóbal de La Laguna, in the Canary Islands, has two nuclei: the original, unplanned Upper Town; and the Lower Town, the first ideal ‘city-territory’ laid out according to philosophical principles. Its wide streets and open spaces have a number of fine churches and public and private buildings dating from the 16th to the 18th century.
Criteria for inclusion as a World Heritage Site
|ii||To exhibit an important interchange of human values, over a span of time or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning or landscape design.||All|
|iv||To be an outstanding example of a type of building, architectural or technological ensemble or landscape which illustrates (a) significant stage(s) in human history.||All|
About the source: UNESCO
Within UNESCO's broad remit, this specialised agency of the UN works towards international cooperation agreements to secure the world's cultural and natural heritage, designating venues of exceptional value as World Heritage Sites.