" spanish architecture firm romera y ruiz arquitectos has won 'best new and old building' at the world architecture festival awards 2011 with 'puzzle piece' a canopy structure designed for the la herradura school. the covered solution is placed within the existing children's courtyard generating naturally ventilated areas providing protection from the sun and rain for outdoor games. the organic form is inserted into the old enclosure leaving enough space to let light flood the interior walls as it extends over the paths between the classes, dining-room and main entrance. "