Riyadh: Saudi Arabia is going to build the world’s first vertical city. The project has been named The Line. This will be a one-building city. Its width will be 200 meters 656 feet, while its length will be 170 kilometers. Not only this, it will be 500 meters 1,640 feet above sea level. It is estimated that it will take 39.98 lakh crore rupees to make it.
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