Lot-ek has always been a favorite in the realms of sustainable architecture along with an assortment of incredible projects dealing with art, architecture, information, urban reality, and technology woven into our everyday lives. Recently they introduced an astonishing concept for a library using over 200 Boeing 727 and 737 fuselages. The fuselage is the ONLY part of a decommissioned airplane that cannot be effectively recycled. Check out their site for some very inspirational ideas, especially their use of cargo vessels.