futuristic eco-city with spherical structures and skywalks

futuristicarchitecture futuristicbuildings futuristicdesign futuristicurban sustainability futuristiccity transportation infrastructure urbanplanning architecture connectivity environment development integration futuristic structures innovation technology metropolis spherical landscape ecosystem modernity panoramic skywalks greenery advanced circular vertical progress thriving ecocity concept science fiction habitat network spheres modern design future aerial vision utopia urban cloud glass scifi green pods day