Giới Thiệu Về Phong Nha Kẻ Bàng Bằng Tiếng Anh Về Phong Nha Kẻ Bàng 2022
Designated a Unesco World Heritage site in 2003, the remarkable Phong Nha-Ke Bang National Park contains the oldest karst mountains in Asia, formed approximately 400 million years ago. Riddled with…