The Line is a planned linear city within the NEOM development in Saudi Arabia, designed as a car-free, carbon-neutral metropolis. It will be 170 kilometers long, 500 meters high, and 200 meters wide, with a mirrored exterior and a focus on walkability and sustainability. The project is part of Saudi Vision 2030 and aims to house 9 million residents by connecting communities with high-speed rail and prioritizing renewable energy.