0 nations belong to UNESCO. The Organization is headquartered in Paris, France, with over 50 field offices and several institutes and centres throughout the world. UNESCO pursues its action through five major programmes: education, natural sciences, social & human sciences, culture and communication & information. Projects sponsored by UNESCO include literacy, technical, and teacher-training programs; international science programs; regional and cultural history projects, the promotion of cultural diversity; and international cooperation agreements to secure the world’s cultural and natural heritage and to preserve human rights.