I have come to think of UNESCO with regard to their World Heritage sites (I saw in the news that Neuschwanstein was just recently added), but one of my favorite science books when I was growing up I found was compiled by UNESCO, "700 Science Experiments For Everyone" [1]. I loved the way it showed you how to set up a modest "lab" with inexpensive (or found) things. Perhaps they were considering poorer communities/nations.