He's one of the best-known artists of the 20th Century but, before The Adventures of Tintin, the Belgian artist Hergé created art of a different kind - murals at the Brussels school where he once studied.

In the early 1920s Hergé, then a 15-year-old Georges Remi, was a scout and student at Institut St Boniface, in the Ixelles area of Brussels.

He adorned the walls of the old scout HQ with lovingly rendered art showing scouts and Native American Indians, as well as a map of Belgium.