Myka Nelson, left, and Zander Anderson interact with a sensory playscape at Clifty Creek Elementary School in Columbus, Ind., Thursday, April 4, 2019. Exhibit Columbus Design Fellow Sean Ahlquist, also a professor of architecture at the University of Michigan, designed the sensory playscape for students with special needs. He was testing the playscape at Clifty Creek as part of his work with Exhibit Columbus. Mike Wolanin | The Republic