petroleum, representing 10% of the island's GDP, again largely due to the capital Santa Cruz de Tenerife with its refinery. It provides petroliferous products not only to the Canaries archipelago but is also an active in the markets of the Iberian Peninsula, Africa and South America.
Monuments
There are many monuments on the island, especially from the time after the conquest, we can highlight the Cathedral of San Cristóbal de La Laguna, the Church of the Conception of La Laguna and the Church of the Conception in the capital. The Basilica of Candelaria|Basílica de Nuestra Senora de la Candelaria can be found on the island (Patron of Canary Islands). The island also has several archaeological sites of Guanche time (prior to the conquest), which generally are cave paintings that are scattered throughout the island, but most are found south of the island, such as, Cambados The Archaeological Area and the archaeological site of El Barranco del Rey both in Arona. We could also highlight the Cueva de Achbinico (first shrine Christian of the Canary Islands, Guanche vintage-Spanish). In addition there are some buildings called Güímar Pyramids, whose origin is uncertain. Also noteworthy on the island are the defensive castles located in the village of San Andrés, as well as many others throughout the island.
Among other impressive structures is the Auditorio de Tenerife, one of the most modern in Spain, which can be found at the entry port to the capital (in the southern part of Port of Santa Cruz de Tenerife). Another prominent structure is the Torres de Santa Cruz, a skyscraper 120 meters high (the highest residential building in Spain and one of the tallest skyscrapers in the Canary Islands)
