@CNN: Have you ever noticed a large concrete arrow in your travels across America? They point the way to an intriguing use that’s almost 100 years old. https://t.co/rWRnrDn4Nf https://t.co/h0MRYCNpnZ

July 14, 2018 / The Arbiter / CNN

@CNN: Have you ever noticed a large concrete arrow in your travels across America? They point the way to an intriguing use that’s almost 100 years old. https://t.co/rWRnrDn4Nf https://t.co/h0MRYCNpnZ

Have you ever noticed a large concrete arrow in your travels across America? They point the way to an intriguing use that's almost 100 years old. https://t.co/rWRnrDn4Nf pic.twitter.com/h0MRYCNpnZ

— CNN (@CNN) July 14, 2018

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