Pupils asked for a building without walls that was like a garden and a spaceship. The dazzling result, housed within a living skin for insects and fungi, is one of the most inventive schools ever built.

"It looks like a robot made of butter,” was one pupil’s reaction when they saw their new school for the first time. They were not wrong. Standing on the northern outskirts of Madrid, in the suburb of Encinar de los Reyes, the Reggio school by Andrés Jaque is a surreal sight, rising from its sloping plot like a big, buttery machine for learning...

The Guardian: Rainforest? Turn left after the drawbridge! Inside Madrid’s eye-popping living school