Detian Falls, China/Vietnam

Detian Falls spans the China-Vietnam border as Asia's largest transnational waterfall, plunging 200 metres across a three-tier limestone cliff face backed by karst peaks and rice paddies. At 120 metres wide, it is 15% broader than the average large waterfall in the region, carrying 50 cubic metres per second during peak flow. This volume trails Kaieteur Falls (#5) by a factor of 13, yet its cross-border setting makes it a unique geopolitical landmark.