Dubailand was announced on 23 October 2003. It will have an area of 278 km2 (107 sq mi) and include 45 “mega projects” and 200 sub projects. To date, there are currently 22 projects under construction. Dubailand is divided into six zones (worlds): Attractions and Experience World, Sports and Outdoor World, Eco-Tourism World, Themed Leisure and Vacation World, Retail and Entertainment World, and Downtown. It will be twice the size of Walt Disney World Resort, and will be the largest collection of theme parks in the world; however, no theme park in Dubailand will surpass Disney’s Animal Kingdom (located at Walt Disney World Resort) as the world’s largest theme park.