Giant Concrete Arrows Across the United States
Julia Gaudinski stashed this in History
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At least there's a good reason why there are 1500 concrete arrows spread all over the USA:
In terms of leaving a signature mark on the landscape the Egyptians built the pyramids, the Romans built straight roads across Europe, the Chinese the great wall. Here in the United States we have…70-foot concrete arrows all across the country! It’s really true. There were 1500 of them built between 1923 and 1933 to guide pilots for flight during day and night.