burj kalifa dubai uae highest tower in the world

124 169 575 636 2007 abu apartments architects architecture armani basement big bin blue build building burj bussiness clouds concrete desert desertflower dhabi dubai emaar emir emirate emirates floors fund funds glass gold groundfloor hall heaven high house hymenocallis kalifa khalifa merrill meter nahayan oil oilindustry owings properties raise silver skidmore sky skyline tall tallest technical tower view world zayed royalty royal