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#union pacific #railroad #gateway to the west #omaha history #transcontinental railroad #nebraska

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#gateway arch #iconic landmark #gateway to the west #st. louis symbol #missouri #USA monument #stainless steel arch

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#gateway arch #st. louis missouri #midwest city #mississippi river #central hub #gateway to the west #urban midwest

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#gateway to the west #st louis history #gateway arch #stl #westward expansion