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Mark Luko: Panorama from Usambara Mountains, Tanzania
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Mark Luko: Usambara Mountains, Tanzania
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Mark Luko: Usambara Mountains, Tanzania
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Mark Luko: Safari in Ngorongoro, Tanzania
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Mark Luko: Lanmanalaugar Panorama, Iceland
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Mark Luko: Haifa - Industrial Zone
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Mark Luko: Trekking around Tasilaq island - Panorama
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Mark Luko: Ice fjord panorama, Greenland
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Mark Luko: Viti Crater, Krafla, Iceland
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Mark Luko: Churches of Ein Kerem, Jerusalem, Israel