Printed by Security Bank Note Co., Philadelphia.  ·  CE 508.  ·  The Gate of the Sun is a megalithic solid stone arch or gateway constructed by the ancient Tiwanaku culture of Bolivia. It is located n
Printed by Security Bank Note Co., Philadelphia.  · CE 508.  · The Gate of the Sun is a megalithic solid stone arch or gateway constructed by the ancient Tiwanaku culture of Bolivia. It is located… © Post of Bolivia, Public domain, via Wikimedia Commons

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