Phong Nha - Kẻ Bàng

Etymology
🇰🇲.
 * "Phong Nha": (the wind blowing in the cave makes stalactites like teeth) or  (the mountains are arranged in regular rows like the image of mandarins standing in rows on the courtyard or in the officer mansion). All of these are some people's own opinions on the place name etymologies. See  for more.
 * "Kẻ Bàng": Maybe 🇰🇲? Compare 🇰🇲.