5. Caño Cristales, Columbia
The “River of Five Colors” is definitely a strong contestant for the number one spot as the most beautiful river in the world. Because of the high concentration of algae in the water the bed of the rivers can be seen in garish hues of yellow, green, red, blue and black.
6. The Mekong, South-East Asia
The Mekong rivers runs through some of the most exotic destinations in Asia like Burma, Cambodia (Angkor Wat), the Yunnan province in China, Vietnam (Ho Chi Minh City), Laos and Thailand.