futuristic floating city above modern metropolis with advanced architecture

futuristicarchitecture advancedcivilization advancedtechnology metropolisskyline futuristiccity urbanlandscape transportation architecture civilization skyscrapers engineering environment sustainable imagination futuristic metropolis innovative technology innovation futuretech digitalart aerialview visionary transport landscape modernism floating advanced vertical megacity hightech concept science fiction skyline horizon ecocity utopian fantasy modern aerial clouds sphere future design scenic urban dream city day sky