Government and Official Sites of the all Countries: Vatican City (Holy See)

Gov. Official Sites of the Vatican:

• Santa Sede - Vatican

• Stato della Città del Vaticano - Portale Istituzionale

• The Holy Father - Franciscus

• Secretariat of State

• The Roman Curia

• General Overview on the Holy See and Vatican City State

• Congregazione per il Clero - Santa Sede

• Permanent Observer Mission of the Holy See to the United Nations

• Diocese of Rome

Arts & Culture of the Vatican:

• The Vatican Museums

• Vatican Library and Secret Archives

Travel and Tour Consumer Information of the Vatican:

• Romaturismo

• Romguide

• The Christian Catacombs of Rome

• St Peter's Basilica.org

• UNESCO World Heritage: Vatican City

Education of the Vatican:

• Pontifical Academy of Sciences

• Pontifical Academy of Social Sciences

• Pontificia Università Gregoriana 

• Pontificia Università Lateranense

• Vatican Library

• The Vatican Observatory

History of the Vatican:

• History of the Secretariat of State of the Holy See

• History of the Vatican Museums

• Collection of Parchments: Popes Letters 

• A Short History of the Holy See's Diplomacy

• Holy Year

• How is the Pope elected?

• History of the Papacy

• List of Popes

Monastic Orders of the Vatican: 

• The Augustinians

• The Order of Saint Benedict

Cistercians of the Strict Observance of the Vatican:

• Order of Cistercians Common Observance (OCIST)

• Charte des Abbayes et Sites Cisterciens d'Europe

• O.C.S.O. Order of Cistercians

• Ordo Fratrum Beatæ Virginis Mariæ de Monte Carmelo

• Ordo Fratrum Minorum

• Franciscans International

Jesuits - The Society of Jesus of the Vatican:

• The Jesuit Curia in Rome

• Jesuits in Europe

• JesuitsUSA 

• SalesianiThe Sovereign Military Order of Malta

• The Knights of Columbus

Sources and additional Information of the Vatican:

• BBC Country Profile: Vatican City State

• GlobalEDGE: Vatican City State

• Wikipedia: Vatican City State

• The World Factbook -- Vatican City State (Holy See)