The first art space to open on Naoshima in 1992, this Andō Tadao-designed museum on the island's south coast holds works by Andy Warhol, David Hockney, Jasper Johns, and Japanese artists like Ōtake Shinrō. But the real genius is how art installations are scattered across the adjacent shoreline and forest, blending architecture into the landscape so seamlessly that you're never sure where the gallery ends and nature begins. The building itself, with its clean concrete and ocean views, is as much a work of art as anything inside.