Overhead drone shot moving from top to bottom on some natural prehistoric rock formations of Beglik Tash sanctuary, in the middle of a forest near the Black Sea in Bulgaria

beglik tash bulgaria prehistoric rock sanctuary primorsko thracian tribes iron age megaliths place of worship wombcave openair museum burgas province marriage bed rituals sacrificial stones sharapana menhiris divine step holy cave sun god archaeological site green boulders drone shots aerial trees ecosystem environment nature reserve stone altar symbolic fertilization earth womb taslar hardened magma sacred historical