NEOM, the massive futuristic urban and industrial development initiative spanning northwest Saudi Arabia, represents the largest active mega-construction project in the world. Designed as a cornerstone of the nation's economic diversification strategy, the multi-hundred-billion-dollar undertaking encompasses monumental regional developments such as the linear city The Line, the mountain tourism hub Trojena, and the industrial complex Oxagon. Covering thousands of square kilometers, it integrates advanced green hydrogen production, renewable energy microgrids, and cutting-edge smart-city infrastructure.