How Malaysia Built the World's Tallest Towers on Hollow Rock

Engineers moved the foundation of the Petronas Towers 60 metres after finding hollow limestone under Kuala Lumpur. 208 piles reach 120 metres deep to support the towers. One tower even corrected a 25-millimetre lean, floor by floor. Still the tallest twin structures ever built. #Megaprojects #Engineering #CivilEngineering #Megastructures #Skyscraper #Malaysia #HowItsBuilt