Brazilian artist Alexandre da Cunha is the fifth artist in the MCA’s annual summer plaza project series. Da Cunha is known for finding creative ways of re-purposing found objects—straw hats, plastic soda bottles, umbrellas—and the MCA Plaza is activated by three of his interactive pieces, one measuring thirty-feet-tall, made from locally-produced concrete sewer pipes, and a concrete mixer. The materials have been re-purposed from their typical locations—under Chicago’s city streets or on the back of a cement truck—and made accessible for visitors to step inside or peer into and see complex shadows revealed as sunlight filters down into them.