Plane passenger shares aerial image that shows current state of Saudi Arabia’s $1 trillion giga-project ‘The Line’

A plane passenger has shared an aerial image which shows the current status of Saudi Arabia's project, 'THE LINE'.

The 'architectural masterpiece' is due to be completed in 2030 and it looks like it will be a pretty huge job.

The Line is set to be made of mirrored material. (Neom)

If you haven't heard of THE LINE, it's a pretty spectacular $1 trillion project, which is expected to take years to complete.

Described as a 'cognitive city stretching across 170 kilometers, from the epic mountains of NEOM across inspirational desert valleys to the beautiful Red Sea', THE LINE is expected to house a whopping nine million people and will run on 100 percent renewable energy.

Built on only 34 square kilometers, 'The Line' is just 200 meters wide and 170 kilometers long.

Meanwhile, creators say it will have an 'ideal' year-round climate meaning residents can 'enjoy surrounding nature when traveling on foot' and 'have access to all facilities within a five-minute walk'.

There'll also be a high speed rail service, with a transit time of 20 minutes from end-to-end.

HRH Crown Prince Mohammed bin Salman said: “At THE LINE’s launch last year, we committed to a civilizational revolution that puts humans first based on a radical change in urban planning.

"The designs revealed today for the city's vertically layered communities will challenge the traditional flat, horizontal cities and create a model for nature preservation and enhanced human livability.

"THE LINE will tackle the challenges facing humanity in urban life today and will shine a light on alternative ways to live.

“We cannot ignore the livability and environmental crises facing our world’s cities, and NEOM is at the forefront of delivering new and imaginative solutions to address these issues. NEOM is leading a team of the brightest minds in architecture, engineering and construction to make the idea of building upwards a reality.”

One Redditor shared an aerial image (Reddit)

In a recent update, one Reddit user, OohHeaven, shared an aerial photograph of the project under construction.

"I flew over Saudi Arabia's 'The Line' city under construction today," they wrote.

The photo appears to show the area of dessert under construction, with the project spanning far into the horizon.

One person commented on the post: "This has been 'under construction' for a while."

While another responded: "To be fair construction work takes a long time especially in regard to large scale projects, and it doesn’t get much more large scale than that."

Meanwhile, others questioned how long the project was due to take.