Colossal Follow Yasuaki Onishi Suspends Thousands of Copper Foil Molds in an Undulating Framework "Stone on Boundary" is installed less than an hour's drive from the world's largest open-pit copper mine. https://www.thisiscolossal.com/2025/09/yasuaki-onishi-stone-on-boundary-copper-molds-installation/ thisiscolossal.com