Today is traditionally the feast of the Finding of the Cross -- the day that commemorates the discovery of the True Cross of Our Lord in Jerusalem by St. Helen, the mother of the Emperor Constantine I. St. Helen helped establish notable Churches, such as that of the Holy Sepulchre in Jerusalem, but also brought many precious relics back to Rome.
St. Helen of Constantinople by Cima da Conegliano (1495AD)
In that spirit of discovery and the world of old, this website -- Old Maps Online,
http://www.oldmapsonline.org/ -- is a magnificient resource. Easily searchable either by names or on the modern map provided, this will prove an excellent resource for the historian or amateur cartographer! Many thanks to JD who brought this to my attention.