A car-free, carbon-free city the size of Belgium, built in a straight line through a remote part of Saudi Arabia is MBS's grand plan. Will it succeed? The FT's Andrew England explores the crown prince's pet project.

Read more at: https://www.ft.com/content/de6....f336f-2b1c-4732-8c2a

Written by Andrew England. Produced by Tom Hannen. Additional graphics by Steve Bernard.

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