Jamaican-born artist Nari Ward has spent the last 25 years of his life living and working in Harlem. Since the early 1990s, he has made art out of huge collections of found materials. Ward combines the folk traditions of Jamaica with the urban textures of his Harlem neighborhood, pointing out their similarities, and also the key differences between tradition and modernity. At MCA Denver, several of Ward’s early works are on display, including his powerful breakthrough, Amazing Grace. An installation exhibited at the New Museum in 1993, it consists of a looping path made of flattened fire hoses, piles of used baby strollers banked along both sides. —E.C.