What will be the tallest building in 2020?
or:What will be the tallest building in 2020?or:The new 1 mile high building being planned in Dubai. It will be higher than the Burj al Khilafa
or:What will be the tallest building in 2020?
or:The new 1 mile high building being planned in Dubai. It will be higher than the Burj al Khilafa