The 5 Coolest New Parks and Public Spaces in the US In a plan to develop its downtown, Columbus ended up getting two parks: Columbus Commons replaced a former mall and Scioto Mile narrowed a nearby street and improved a waterfront park that was already there. Now almost 18 acres of park include gardens, trails, cafes, a carousel, and a performing arts center with a massive—15,000-square-foot!—interactive water feature.