Architect Jose Maria Chofre just installed a vertical garden on the exterior of a new children's library in San Vicente de Raspeig, Spain. The garden is six stories tall and uses cubic containers filled with substrate felt confined between two metal grids, one outdoor and one indoor. Containers are accessible from several corridors located in the rear, where they can be replaced. A metal structure built upon the deposit of concrete is used for irrigation. Different types of small flowers and herbs fill in the top layers of the garden, while ivy and ferns grow at the bottom. A suspended scaffold in front allows for pruning and replacing specific species.