A fast flowing river flows inside this cave, due to which the cave was formed. A glimpse into the world’s largest cave The Son Doong Cave in Vietnam ... World's tallest mountain is not Mt ...

An artist’s impression of a wooden stage on the Huong River in Hue City, Thua Thien - Hue Province, central Vietnam. Photo: V. Thanh Hue City, the capital of Thua Thien-Hue Province in central Vietnam ...