Mike Duncan (of the History of Rome podcast) is still participating in tours around the sites in Rome, Naples, Pompeii and elsewhere.
The next tour leaves on May 25th and you can get a $100 discount by visiting this link http://historyofrometour.com/byzantium.
I haven’t been on the tour myself but I have visited most of the places which it visits. I can not recommend them enough. In 2010 I walked around the Forum, the Colosseum, Hadrian’s Villa, Pompeii, Ostia and more – all with “The History of Rome” podcast in my ears! I absolutely loved it and it was a massive inspiration for starting “The History of Byzantium.”
For more information visit the website: http://historyofrometour.com/byzantium.