Vietnam is known for karst landscapes characterized by rich biodiverse caves that researchers say likely host more new species. Nguyen, Stoev, and Vu (2025) Zoosystematics and Evolution Vietnam is ...

This story appears in the January 2011 issue of National Geographic magazine. “Past the hand of dog, watch out for dinosaurs,” says a voice in the dark. I recognize Jonathan Sims’s clipped ...

Quang Binh, known as Vietnam's "kingdom of caves", is home to over 500 caves, with approximately 40 open to tourists.

Take an otherworldly journey through Hang Son Doong, the world's largest cave located in Vietnam. The cave is more than 500 feet tall, 650 feet wide, and 29,500 feet long. Video courtesy of Ryan ...