engineerguy | Skyscapers become lighter #Shorts #engineerguy #engineering #skyscapers #EmpireStateBuilding #willis @engineerguyvideo | Uploaded 11 months ago | Updated 6 minutes ago
How skyscapers became lighter: The Empire State Building compared to the Willis (formerly Sears) Tower.
How skyscapers became lighter: The Empire State Building compared to the Willis (formerly Sears) Tower.