Do you know that Jefferson National Expansion Memo...

Do you know that Jefferson National Expansion Memorial actually consists of the Gateway Arch, the Museum of Westward Expansion, and St. Louis' Old Courthouse.
The Gateway Arch is a 630 foot stainless steel arch. It was built as a perfect monument to the spirit of the western pioneers. Construction of the Arch began in 1963 and was completed on October 28, 1965, for a total cost of less than $15 million!
Do you the Arch has foundations sunk 60 feet into the ground, and is built to withstand earthquakes and high winds. It sways up to one inch in a 20 mph wind, and is built to sway up to 18 inches.