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Mark Schermerhorn: Hagia Sophia
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Mark Schermerhorn: Up front
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Mark Schermerhorn: Diagonals
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Mark Schermerhorn: Interior
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Mark Schermerhorn: Hagia Sophia ceiling 1
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Mark Schermerhorn: looking outside
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Mark Schermerhorn: railing
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Mark Schermerhorn: Hagia Sophia ceiling 2
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Mark Schermerhorn: Hagia Sophia ceiling 3
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Mark Schermerhorn: Tourists