Saudi Arabia is no stranger to bold construction projects, and its latest plan is set to break records. The North Pole project, recently announced by Saudi Arabia Holding Co., will feature a 2-kilometer-tall skyscraper — the tallest structure ever built. The Rise Tower, as it’s called, will be located in northern Riyadh, forming the centerpiece of a new central business district. The Public Investment Fund (PIF) has started the bidding process for the tower, with costs estimated at around USD 5 billion, though the final price will depend on the design. To put things in perspective, Dubai’s Burj Khalifa stands...