Use as an urban park was intended from the start, with "Upper City Park" originally selected as a name to distinguish the park from City Park, but few improvements occurred in the first decade. The nascent park accommodated a World's Fair soon thereafter, the World Cotton Centennial of 1884. After the closing of the fair, the park's development began in earnest. Most of the fair's buildings were demolished, with the exception of Horticultural Hall - which remained in the park until destroyed in the 1915 New Orleans hurricane. The only notable reminder of the fair to remain in the park in the 21st century is a large iron ore rock from the Alabama State exhibit (which in local lore has often been misidentified as a meteorite). Audubon Park's present form largely follows a design drafted by John Charles Olmsted, a principal of the renowned Olmsted Brothers landscape architecture practice.