Upon recently visiting the Roman amphitheatre at Arles, I marvelled at the scale of the building, and Roman engineering skills. Picture taken of Arles amphitheatre – Image © Edmund MB King During the visit, we came across a notice board: ‘Principaux amphitheatres du monde romain’, which shows a list of dimensions for each one. Arles is number twelve on the list, out of twenty-one. I was intrigued that Pouzzoles ( Pozzuoli/ Puteoli)  was even larger than the colosseum in Rome. …