On the shooting of « Serko », a film reenacting the longest horse-ride ever done in the history of man, : 9000 Km in 200 days from the Amur River to St Petersburg, by a Cossack named Dimitri Petchkov and his horse Serko in the winter of 1890. Siberia, Irkutsk District, Lake Baikal region, March 2005. Director: Joel Farges. Adaptation from the book by Jean-Louis Gouraud: Serko. Dimitri Petchkov (Actor: Alexei) and horse Serko riding over frozen Lake Baikal. — Image by © Matthieu Paley/Corbis