From the Tallest Failed Skyscraper in America to the most Insane Airport Megaproject ever proposed, and from the World's Largest Dome to the MileHigh Illinois Skyscraper, here are the Most Insane Megaprojects that were Never Built! For more Megaproject & Skyscraper content be sure to subscribe to Top Luxury. Thanks for watching our video about the most Insane Megaprojects that were Never Built

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0:00 Insane Megaprojects that were Never Built
0:32 Number 6: The Dream Airport above New York
3:27 Number 5: The Most Iconic Hotel in the World
5:49 Number 4: The MileHigh Illinois Skyscraper
7:10 Number 3: America’s Tallest Failed Skyscraper
9:23 Number 2: The World's Largest Dome
11:14 Number 1: The Sphere Pyramid

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