120-km long 'sideways' skyscraper to be built for $1 trillion in Saudi Arabia

Saudi Arabia is planning to build a $1 trillion sideways skyscraper stretching over 120 km, which will house five million people, a report by the Wall Street Journal has said. Pictures of what the mirrored skyscraper called 'Mirror Line' will look like have also been shared online. It will have a suspended sports complex, a marina to moor yachts etc.