Triveria

Did you know four of the longest rivers in the world are partly or completely in Russia? They are the Yenisei - Angara - Selenga (#5), Ob - Irtysh (#7), Amur - Argun (#9), and Lena (#10).

Also from that same page... You know that the Amazon is the largest river by volume, but did you know by how much? Its discharge is fully five times the discharge of the second largest river, the Congo, and seven times that of the might Yangtze, the third largest.