It sounds like something plucked right out of a sci-fi novel but proposed plans for a giant city in the Arabian desert include flying cars and robot maids.
The project, called The Line in Saudi Arabia is the idea of Crown Prince Mohammed bin Salman and forms part of a wider development project called Neom.
The oil-rich sovereign state wants to build an incredible megacity 105-miles long that is enclosed between two vertical, glass mirrored skyscrapers that are just 200 metres apart.
