The United Nations Educational, Scientific and Cultural Organization (UNESCO) has designated 131 World Heritage Sites in Western Europe. These sites are located in 9 countries (also called "state parties"); France and Germany are home to the most with 37, while Liechtenstein and Monaco have no sites. There are ten sites which are shared between state parties both in and out of Western Europe. The first site from the region to be included on the list was the Aachen Cathedral in Germany in 1978, the year of the list's conception.