Jeddah Tower, soon to be the world's tallest building, is rapidly rising into the Saudi Arabian sky as construction steams ahead. And now its developers have announced they expect it to be ...

At the moment, Princess Tower in Dubai Marina is the tallest residential building in the city. Completed in 2012, it is a 101-storey residential tower that is 413m tall.

The tower has long been touted as the next Burj Khalifa - the world's current tallest building. But the tower has been beset by problems, with work grinding to a halt when it was only a third built.