Vatican Observatory
- Ancient astronomical research institution. Includes history, profiles of personnel, details of telescopes, and a streaming video on the relation of science and religion.
- http://clavius.as.arizona.edu/vo/

Vatican Library Exhibit : The City Reborn
- US Library of Congress exhibit presenting the Vatican Library's most precious manuscripts, books, and maps. Presents the untold story of the Vatican Library as the intellectual driving force behind the emergence of Rome as a political and scholarly superp
- http://www.ibiblio.org/expo/vatican.exhibit/Vatican.exhibit.html

Vatican Library and Secret Archives
- Collections and documents. Online Public Access Catalog of the Vatican Library.
- http://www.vatican.va/library_archives/index.htm

Musei Vaticani - The Vatican Museums
- Contain high definition images and virtual visits for Sistine Chapel, Raphaels Rooms, Pinacoteca, Egyptian Museum, Etruscan Museum and Ethnological Missionary Museum in 5 languages.
- http://mv.vatican.va/StartNew_EN.html

The Holy Father
- From Leo XIII to John Paul II.
- http://www.vatican.va/holy_father/index.htm