If it was the opening sequence of a science fiction movie, few would be surprised.

In a glossy video narrated by an American voiceover artist, Saudi Arabia has previewed The Line, a 170km long skyscraper standing 500m tall – higher than New York’s Empire State Building.

It is designed for nine million residents living in a “series of unique communities”.

Residents will have access to “all their daily needs” in “five-minute walk neighbourhoods”.

“Autonomous” services are being promised through the use of artificial intelligence, in what is being described as a “revolution in civilisation”.

The 200m wide linear structure, to be clad in mirrored glass, is the desert kingdom’s attempt to create a “healthier, more sustainable quality of life” with communities “organised in three dimensions” – as opposed to traditional cities which it says are “dysfunctional and polluted” and “ignore nature”.

Another video shows the resident of a grey urban jungle escaping to The Line, which is portrayed as an oasis.

To be built in the country’s northwest, it is planned to cover 34 square kilometres and travel from end to end is expected to take just 20 minutes.

There will be “no need for cars” and carbon emissions will be zero, the country said.

Energy and water supplies are described as “100% renewable”.

Inside, there will be a “year-round temperate micro climate with natural ventilation”.

The futuristic project is part of NEOM, a $500bn economic zone expected to be partly financed through a flotation expected in 2024.

NEOM was announced in 2017 as part of Crown Prince Mohammed bin Salman’s Vision 2030 reform plan which is intended to help diversify Saudi Arabia’s economy away from oil.

A first phase of fundraising is expected to cost $319bn, half of which will come from the kingdom’s sovereign wealth fund.

The country will tap other sovereign wealth funds in the region, and globally, in the fourth quarter of this year to raise part of the remaining money, the crown prince said.

Discussing The Line, he said that “since we are doing it from nothing, why should we copy normal cities?”

He added: “I believe it’s going to be the best liveable area – by far – in the whole planet.”

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