As per a recently released report by Council on Tall Buildings and Urban Habitat (CTBUH), the 355-metre JW Marriott Marquis Hotel Tower 2 in Dubai is the tallest among all the buildings completed in 2013. However, overall this is the 27th tallest building and the 823-m Burj Khalifa (163 floors) completed in 2010 in Dubai retains the top spot globally.