From April 30 through June 1, the public will be able play with over 650,000 translucent plastic balls in the subterranean trolley station under Dupont Circle, known as Dupont Underground. Each of the balls in the interactive art exhibit will be arranged in 18,000 3x3x3 cubes. With velcro attached to each cube, visitors will then be able to manipulate the layout of the exhibit.
The exhibit will be located in Dupont Underground’s 14,000-square-foot east platform and will be divided into five different zones. These zones will feature the cubes arranged as government buildings, walls of text, a “crystalline cave,” forest and spherical shells.
This article originally appeared on Recode.net.