Modern Hagiography
Lives of the Saints by Alban Butler.
Medieval Hagiography
The Cult of Saints in Late Antiquity Database
Art & Architecture
Catalogo generale dei beni culturali
POP : la plateforme ouverte du patrimoine
Menologion of Basil II (about)
Guide to Christian Iconography: Images, Symbols, and Texts
A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.
Saints and their Symbols: A Companion in the Churches and Picture Galleries of Europe by E. A. Greene.
The Saints in Art by Joseph Maria von Radowitz.
Nihil sub sole novum 