Embassy of the United States to the Holy See Embassy of the United States to the Holy See The Embassy of the United States of America to the Holy See (or Embassy Vatican for short) is the diplomatic mission of United States of America to the Holy See, a term referring to the central government and universal reach of the Roman Catholic Church. The current embassy moved to new headquarters in September 2015 in a separate building on the same compound as the United States Embassy Rome. The embassy was previously located on Aventine Hill in the Villa Domiziana in Rome, Italy, which was built as a private residence
Foreign relations of the Holy See is active in international organizations and is a member of the following groups: The Holy See is also a permanent observer of the following international organizations: The Holy See is an observer on an informal basis of the following groups: The Holy See sends a delegate to the Arab League in Cairo. It is also a guest of honour to the Parliamentary Assembly of the Organization for Security and Cooperation in Europe. Since 6 April 1964, the Holy See has been a "permanent observer state" at the United Nations. In that capacity, the Holy See has since had a standing