Dubai has undergone rapid development in the last 15 years, fueled by ambitious construction projects. Some of the largest projects underway or planned include massive artificial islands in the shapes of palm trees and the world map, hotels that will be among the tallest in the world like the Burj Al Arab and Burj Dubai, and Dubai Land which will be the largest theme park in the world twice the size of Disney World. Dubai aims to surpass other cities and become the top tourist destination worldwide through developments that include the world's largest shopping mall, indoor ski slope, and waterfront area.