This cave, carved into the rock, is a testimony to the Roman technique of gold extraction. The water channeled down the mountainside through a complex system of galleries and channels eroded the land, leaving behind these impressive formations. ⛏️ #LasMedulas #RomanGoldMining #AncientRome #HistoricalSite #GoldMining #RomanEmpire #SpanishHeritage #UNESCOWorldHeritage #RomanEngineering #GoldExtraction #RomanRuins #ArchaeologicalSite #SpanishHistory #MinasDeOro #RomanLegacy #sonya350 #vmribeiro