When Saudi Arabia announced that they were going to build a tower twice size the height of Dubai’s Burj Khalifa, we all dropped our jaws. Billionaire Prince Alwaleed bin Talal is a man of taste and means business and has unveiled the first news on the progress of the plans by awarding Saudi Binladin Group a contract to build the new world’s tallest tower in Jeddah. It will be all of 1,000 metres and will cost Alwaleed’s investing company Kingdom Holding Co 4.6 billion riyals ($1.2 billion) to construct. It will be right at the centre of the Kingdom City, a 100 billion riyal development. The tower is designed by Adrian Smith & Gordon Gill Architecture.