How much do you know about Saudi Arabia's futuristic urban project

• Saudi Arabia has unveiled designs for an ambitious urban project called "The Line."
• The project is a proposed 200-meter wide building designed to sit 500 meters above sea level.
• The Line will stretch over 106 miles and ultimately house 9 million people.
• It will run entirely on renewable energy, with no roads, cars, or emissions.
• High-speed rail will connect sections of The Line.
• The metropolis will be run with the aid of artificial intelligence.
• The project is part of a Saudi rebrand plan called Vision 2030.
• The project is backed by $500 billion from the Saudi government and the Saudi Arabian Public Investment Fund.
• Critics have cast doubt on whether the project is technologically feasible.
• Saudi Arabia continues to be plagued by criticism over its human rights record.

Find out how much you know about Saudi Arabia's ambitious urban project, "The Line," which aims to house 9 million people with no roads, cars, or emissions, and run entirely on renewable energy. Test your knowledge on the proposed 106-mile long metropolis, which will be run with artificial intelligence and backed by $500 billion from the Saudi government. Discover the controversies surrounding the project and its place in Saudi Arabia's Vision 2030 plan. Take the quiz now!