Final answer:
Amelie's father's garden gnome is unusual because it 'travels the world,' or is photographed at various landmarks and the photos are sent to Amelie's father.
Step-by-step explanation:
The unusual thing about Amelie's father's garden gnome is that it travels the world. In the movie Amelie, the main character, Amelie, takes the gnome from her father's garden and gives it to a flight attendant friend. The gnome is then photographed at various international landmarks, with the photos being sent back to Amelie's father to show that the gnome is 'traveling.' This subplot in the film serves to bring a sense of adventure and whimsy, encouraging Amelie's father to step out of his comfort zone and explore the world beyond his garden.