I'm not a specialist, but I expect I know somewhat more about it than most people. A very brief summary goes as follows: Constantine / division of the Empire, Theodosius, Justinian (laws! laws!), lots of Greeks, Fourth Crusade / Latin Empire, 1453, lots of Ottomans, First World War, Ataturk.
Images? I've been to Istanbul - visited Hagia Sophia and some of the other tourist sites, seen the Theodosian walls.
I don't think I currently have a particular desire to know much more, though I might well read Procopius at some point. I guess I am somewhat fascinated with Justinian (despite the Roman Law project!), who seems to have been roughly the Napoleon of his age.