Interesting facts In the middle of the desert, a megacity 170 km long and 500 meters high, formed by two mirrored walls, promised to house 9 million people, abolish cars, and reinvent urban life, until reality demanded its price. Ana Alice 24/03/2026 at 01:34
Interesting facts Desert Megacity Cleans Sewage With Plants in Riyadh by Diverting Millions of Gallons Per Day to Artificial Wetlands That Filter Water for 21 Hours Before Returning It for Local Irrigation and Agriculture Bruno Teles 25/02/2026 at 19:00
