Forget what it was called, but there was a great documentary several months back about the saving the film archives and other artworks in Afghanistan and the people who saved them from systematic destruction by the Taliban. They built false walls, broke out lights in hallway corners to disguise entrances, and IIRC, produced faked "originals" of films to be destroyed instead of the originals. They painted over many paintings in the national museum as well, in a back room under the guise of restoration. All of this activity was punishable by death if found out. This was almost certainly on PBS, probably Frontline.