On a visit to ta friend's house, I saw that he has this new coffee-table book "The Library: A World History." It has beautiful photographs (interior and exterior shots) from all over the world of libraries from Roman times to the present (including plenty in Asia that were totally unfamiliar to me).
Immediately I thought that Wikipedia's photograph hunts (e.g. "Wiki Loves Monuments") could be combined with Wikipedia Loves Libraries to create a fabulous record of libraries in communities the world over, large and small.
Perhaps next year?