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2. Neom City –$ 500 Billion
One of the most futuristic systems in the world, Neom is Saudi Arabia’s$ 500 billionmega-city design that aims to review civic living. It includes The Line, a 170- kilometer-long smart megacity without buses ; Oxagon, a high- tech floating artificial mecca; and Trojena, an advanced ski resort in the desert. Neom is 100 powered by renewable energy and promises to be a sustainable, AI- driven megacity. While construction is formerly underway, major developments are anticipated throughout the 2030s.