Approaching drone shot showing a flag being blown by the wind at the end of a viewpoint platform on the ancient historical site of of Perperikon, located in the province of Kardzhali, in Bulgaria

perperikon ancient thracian city kardzhali province bulgaria eastern rhodopes sacred place ruins ancient city hills mountains fortress historical megalith perperakion thrace settlement shrine medieval masonry cultural ancient civilization altarpiece temple dionysus bulgarian history architecture rock sanctuary residential palace complex ancient buildings tombs rock city rhodope mountain archaeological complex tourists tourism destination attractions rock structures gorna krepost thracian sanctuary medieval fortress countryside historic sites landmarks archaeological site ramps bulgarian flag columns