while surfing on the internet, I came across this information.
Laos biggest waterfall, Khone, is on the list the world's largest waterfall.
Can you guess what ranking the Khone waterfall, check it out below

1 .	Inga Falls	1,500,000 cfs	? ft / ? m	Congo River	Congo
2 .	Livingstone, Chutes de	1,240,000 cfs	15,840 ft / 4,828 m	Congo River	Congo
3 .	Boyoma Falls	600,000 cfs	4,500 ft / 1,372 m	Lualaba River	Congo
4 .	Guaíra, Salto del	470,000 cfs	15,840 ft / 4,828 m	Rio Paran	Brazil
5 .	Khone, Chutes de	410,000 cfs	35,376 ft / 10,783 m	Mekong River	Laos

SOurce: http://www.world-waterfalls.com/database.php?s=N&t=W&orderby=avevolume&sortLimit=5000