Gazing down at foamy-looking swirls of white on black from a niche in an ancient castle, you almost feel as if you’re an astronaut watching a hurricane form above the ocean on the distant Earth. These cellular arrangements form tentacular appendages of varying opacity, meeting in the center to create a vortex effect. They are, in fact, made of salt, with each grain symbolizing a memory or a moment in time. Artist Motoi Yamamoto installed ‘Floating Garden’ and ‘Labyrinth’  within the castle tower at Aigues-Mortes in Southern France for an exhibition called ‘Univers’ Sel,’ on display through the end of November.

Source: Univers-Sel: Salt Labyrinths Swirl Inside 13th Century French Castle | Urbanist