Tam Thanh Cave, a spiritual and scenic spot of Lang Son Friday, December 17, 2021 | 23:22:00 (VOVWORLD) - Tam Thanh is the biggest cave in the northern province of Lang Son city. The 400m long cave houses Tam Thanh Pagoda which dates back hundreds of years. Tag VOV VOVworld Tam thanh cave Lang Son province Tam thanh pagoda Feedback Submit Others Vietnamese designer makes impressive debut at Milano Fashion Week Yen Tu Monuments and Landscape complex embraces potential to become a World Heritage Site Lang Son Geopark recognised as UNESCO Global Geopark Vietnam's Hoi An crowned as “Asia's Leading Cultural City Destination” for 5th time