Nile River (Africa)
Amazon River (South America)
Ganga River (India)
Yangtze River (Asia)
Mackenzie River (North America)
Danube River (Europe)
Niger River (Africa)
Hudson River (North America)
Mississippi River (North America)
Yellow River - China (Asia)
Amazon River (South America)
Ganga River (India)
Yangtze River (Asia)
Mackenzie River (North America)
Danube River (Europe)
Niger River (Africa)
Hudson River (North America)
Mississippi River (North America)
Yellow River - China (Asia)