Until just a couple of months ago, I did not know that the United Nations Educational, Scientific and Cultural Organization (UNESCO), or Organisation des Nations unies pour l’éducation, la science et la culture as it is called in French, has issued its own postage stamps since 1961. These are valid for postage only on mail posted from UNESCO Headquarters or Maison de l’UNESCO at number … Continue reading UNESCO and the World Heritage Site at Kotor