The primary subject of this chapter is the extensive ensemble of Second Style paintings found at two major ’Vesuvian’ villas: that of Fannius Synistor at Boscoreale and the Villa of Oplontis in Torre Annunziata. Together with our team of researchers, we were intensely involved in several international projects both in meticulously examining and analysing the organisation and decor of these villas, as well as creating highly detailed virtual reality 3D models of them. The chapter draws extensively upon the results of such research and work. We discuss further the striking relationship between the atrium paintings at Oplontis and the structural pattern of the scaenae frons, including that at the Large Theatre of Pompeii itself.