Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. United Nations Educational, Scientific and Cultural Organization or UNESCO is an international organization promoting international cooperation through education, science and culture. Founded in 1945 UNESCO has since grown to include 193 member states. The organization’s World Heritage Program catalogues, names, and conserves sites of outstanding cultural or natural importance to the common heritage of humanity. Learn more about the UNESCO's outstanding work to preserve world's cultural and natural heritage in this book.