Description : Setas de Sevilla ("Mushrooms of Seville") or Las Setas ("The Mushrooms"), initially titled Metropol Parasol, is a wooden structure located at La Encarnación square in the old quarter of Seville. It was designed by the German architect Jürgen Mayer and completed in April 2011. It has dimensions of 150 by 70 metres (490 by 230 ft) and an approximate height of 26 metres (85 ft) and claims to be the largest wooden structure in the world. Spain.