@vietnamtodayvtv: Millions of years have left their mark on Lang Son. From ancient seas and fossil beds to towering mountains and hidden caves, the landscape carries traces of a geological story still unfolding today. Now recognised by UNESCO as a Global Geopark, Lang Son offers a glimpse into how the Earth’s deep past continues to shape life in the present. #VietnamToday #YourWindowOnVietnam #HeritageJourney #VietnamHeritage #LangSonGeopark #UNESCO #Geopark