LEGO castles are a well-practiced art form at this point, so it takes a lot to impress us here at The Brothers Brick. But this pop-up Himeji Castle has left us dumbfounded! According to Japanese builder talapz, whose pop-up Kinkaku-ji temple and Todai-ji temple we’ve featured previously, it took 15 months to complete and weighs 12.5 kilograms (27.5 pounds).

Amazingly, the pop-up and folding action is done entirely with the friction of LEGO pieces, because no glue was used to keep the bricks together. Even when the castle is folded down to its “storage” mode, it measures in at 70 x 70 x 11.5 cms (27.5 x 27.5 x 4.5 inches).