Biggest Megaprojects That Went Wrong- Lessons for the Future

Five of history’s biggest failed megaprojects promised to reshape the future—but delays, cost overruns, weak demand, and broken assumptions changed everything. This civil engineering documentary investigates The Line Saudi Arabia in 2026, California High-Speed Rail, Berlin Brandenburg Airport, Ciudad Real Central Airport, and North Korea’s Ryugyong Hotel. We examine what was promised, what was actually delivered, and the engineering and project-management decisions behind each failure. The Line has not been officially cancelled. This video evaluates the failure of its original near-term promise and the growing gap between the 2021 vision and the project’s reported 2026 reality. Which megaproject was the greatest failure—and which one could still redeem itself? Share your verdict in the comments. CHAPTERS 0:00 Why the World’s Biggest Megaprojects Fail 0:57 Ryugyong Hotel: The Hotel That Never Opened 3:10 Ciudad Real Airport: Spain’s Ghost Airport 5:26 Berlin Brandenburg Airport: Nine Years Late 8:32 California High-Speed Rail: From $33B to $126B 12:18 The Line Saudi Arabia: Plan vs Reality 16:58 Five Lessons Every Engineer Should Know PROJECTS COVERED • The Line and NEOM, Saudi Arabia • California High-Speed Rail, United States • Berlin Brandenburg Airport, Germany • Ciudad Real Central Airport, Spain • Ryugyong Hotel, North Korea #Megaprojects #CivilEngineering #TheLine #dubai #construction Music Credit: MUSIC:1 MokkaMusic Music: 2 MokkaMusic Music: 3 MokkaMusic Track: MokkaMusic - Final Push • Epic Action Orchestral Trailer "no copyrig... Music provided by MokkaMusic YouTube channel and https://inaudio.org