Uploaded November 2012 | Updated September 2026, 47 minutes ago
The combination of a sturdy steel frame and a super concrete core makes Ground Zero's Tower One one of the safest skyscrapers on earth.
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The combination of a sturdy steel frame and a super concrete core makes Ground Zero's Tower One one of the safest skyscrapers on earth.
Become a fan here! facebook.com/HowWeInventedTheWorld










