Named The Line, it would consist of a 170-km (105-mile)-long skyscraper that would serve as home to approximately 9 million people – or roughly the same as the population of New York City.

Putting aside all concerns on feasibility for now, The Line would be part of the larger Neom project and situated in northwest Saudi Arabia, near the Red Sea. We've no word on who's responsible for the design, but Dezeen points the finger at Morphosis, which has previous form for producing ambitious and eye-catching building designs.