This question may come up as a bit strange, but rest assured, it is about culture and symbolism.
During the first few minutes of Batman Begins (at 06:25), there is a scene of Bruce Wayne wandering to the top of the mountain (location unknown to me, but it is mountainous and it does have some Asian flavor to it). In this particular scene, Bruce reaches a plateau filled with a lot of flags (see the attached image):
My question is: what do these flags represent? I.e. is there a function to them, a cultural background, a custom, etc?
As a Europe-centeric historian, I'm completely clueless about these. Therefore, some explanation (and a few external links) would come in handy.