The ambitious plan includes a bridge spanning the Red Sea, connecting the proposed city to Egypt and the rest of Africa. Some 10,000 square miles (25,900 square kilometers) have been allocated for the development of the urban area that will stretch into Jordan and Egypt.#lazy-img-319534026:before{padding-top:75%;}

Now the Saudi Arabian government has come up with a project that could give its economy a boost: a $US500 billion mega-city that will connect to Jordan and Egypt and be powered completely by renewable energy.