Wwi, Hornsby Caterpillar Track, 1908
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Time Projection Chamber, Particle
Science Source
Pompeys Pillar, Ancient Roman Monolith
Science Source
Temple Of Hathor, 1930s
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Dendera Temple Complex, 1938
Science Source
Abu Simbel Temple, 1838
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Dendera Temple Complex, 1930s
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Abu Simbel Temple, 1830s
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Temple Of Luxor, Grand Entrance, 1830s
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Baalbek, 1839
Science Source
Baalbek, 1839 #1
Science Source
Abu Simbel Temple, 1830s #2
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Dendera Temple Complex, 1938 #2
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Colossi Of Memnon, Valley Of The Kings
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Abbasid Caliph Al-mutawakkil
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Abbasid Caliph Al-mutawakkil #1
Science Source
Presidents Science Advisory Committee
Science Source
Cliff Palace, Mesa Verde
David Roberts / Nature's Images
Cliff Palace, Mesa Verde #1
David Roberts / Nature's Images
Eyelash Viper
David T Roberts Nature's Images