3d visuals of riyadh expo 2030 on very large scale ,inspired by dubai expo 2020 , separate multiple exhibition pavilions of all the countries , designed by colalboration of 3xn architects and Bjarke Ingels , kiosks, multiple pavillions of different shapes, , metal concrete glass fabric textures , professional rendering, color grading , robots walking , drones ,realistic details, corona render, 8k