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Making America's Best Idea Even Better
Jefferson National Expansion MemorialThe Old Courthouse
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Jefferson National Expansion Memorial
Mathematical Equation
Mathematical equation that lies behind the construction of the Gateway Arch.
The mathematical equation that lies behind the construction of the Gateway Arch.
The insertion of the last piece of the Gateway Arch  

Did You Know?
The Gateway Arch at the Jefferson National Expansion Memorial was completed on October 28, 1965. To learn more about the construction of the Gateway Arch click here.
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Last Updated: July 25, 2006 at 00:22 EST