In 2004, La Laguna had 137,000 inhabitants and covered an area of some 1,337 square kilometres. Edinburgh Unesco World Heritage says: Edinburgh has been the Scottish capital since the 15th century. Porto Unesco World Heritage says: The city of Porto, built along the hillsides overlooking the mouth of the Douro river, is an outstanding urban landscape with a 1,000-year history. Its masterpieces are the product of heterogeneous civilisations in an environment where the existence of three major religions Judaism, Christianity and Islam was a major factor. An exceptionally well-preserved and authentic example of the evolution of a Medieval settlement into a modern town, its rich building typology exemplifies the specific development of Portuguese architecture from the 15th to 19th century through the consistent use of traditional building materials and techniques. Unesco World Heritage adds: The historic landscape garden of Kew features elements that illustrate significant periods of the art of gardens from the 18th to the 20th centuries. Purnululu National Park, royal Exhibition Building and Carlton Gardens. It continues to be the economic and technology capital of Andalusia as well as the tourist and recreational capital of Europe. . The site which also comprises the small medieval Church of Saint Margaret, built in Perpendicular Gothic style, and Westminster Abbey, where all the sovereigns since the 11th century have been crowned is of great historic and symbolic significance.