Vitosha on the 1st of November 2009 by Nikola Gruev
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Blvd Vitosha by Nikola Gruev
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Iskar river crossing the Balkan by Nikola Gruev
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Bulgaria 2007- Sofia trams by Doron Avi-Ad
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Shiakovski monastery # 160 by Nikola Gruev
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Colonel Vladimir Serafimov by Nikola Gruev
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Maglish monastery #69 by Nikola Gruev
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Belite Kamuni (The White Stones) by Nikola Gruev
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Vitosha mountain on the 4th of October 2020 by Nikola Gruev
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Smolyan's lakes by Nikola Gruev
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Road maps of Bulgaria by Nikola Gruev
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Panagyurishte by Nikola Gruev
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