What are some well known rivers?

Nile, Amazon, Chang Jiang, Mississippi, Yenisey, Huang He, Ob-Irtysh, Congo, Amur, Lena, Mackenzie, Mekong, Niger, Parana, Volga, Shatt-al-Arab-Euphrates, Purus, Murray-Darling, Madeira, Yukon, Indus, Sao Francisco, Syr Darya, Salween, Rio Grande.