John Muir 1902
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Inca punishment stone, Cuzco, Peru
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Blick in ein polnisches Gefangenenlager 1939
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Handley Page type V/1500 four engined Berlin bomber with four Rolls Royce "Eagle Mark VIII" engines [between 1918 and 1925]
XB-47 Stratojet bomber taking off
the XB-36, compared with veteran B-29