The year 2012 marks the 40th anniversary of the adoption of the 1972 UNESCO World Heritage Convention. This booklet highlights the 21 sites in the United States that have been selected and inscribed on the World Heritage List. To make the list, sites must possess natural or cultural significance that makes them of outstanding universal value. Booklet is 24 pages, soft cover. ISBN: 978-1-59091-120-4. Produced by Eastern National. Printed in the USA.
