Carlos Cruz-Diez (1923-2019) at the Cistern: Spatial Chromointerference (May 12, 2018 to April 7, 2019) was a site-specific, ephemeral, and participatory work integrated into the architecture of the urban space. 32 projectors were placed in the Cistern to project moving lattices of light on the columns, interior walls, walkways and on cubes floating in the shallow pool of water on the Cistern floor. This aerial projection, reinforced by its reflection on the water, created a space where everything lost its materiality. Color became not merely a visual object to see but a space to be experienced.