A man walks past a model of the Tower Project at Dubai Creek Harbour Development designed by Spanish-Swiss architect Santiago Calatrava Valls, in Dubai, United Arab Emirates, Sunday, April 10, 2016. Dubai is reaching for the sky once again, with the developer of its world's tallest building vowing Sunday to build an even taller tower bedecked with rotating balconies and elevated landscaping inspired by the mythical hanging gardens of Babylon. (AP Photo/Kamran Jebreili)
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