Construction work is to begin soon on what will be the world's tallest building - Burj Dubai.
Its height will be 800 metres. When work is completed in 2008 it will be nearly 300 metres higher than the TFC 101 building in Taiwan, currently the world's tallest.
Burj Dubai will include a hotel, shops, offices and luxury apartments. It'll be built of glass, aluminium, concrete and steel.