The marina, set to cost $140 billion, is part of The Line, a 110-mile-long "vertical skyscraper" being built in the Saudi desert.

The Line might be the most ambitious real estate project in modern history, even branded as 'impossible' by many, but it's making progress. Located in Saudi Arabia, the £800 billion city is planned to span 170km (105 miles) by the time of its completion, while having a width of just 200 metres.

New satellite images show how little progress has been made on Saudi Arabia's futuristic city of Neom, which is set to be the world's first 'linear city'

The world's largest construction project is carving up the Saudi desert. But will the megacity known as "the Line" ever become a reality?

Neom - the planned 110-mile-long city that will stretch across Saudi Arabia - seems to be running into financial difficulties as experts predict disaster