https://www-mirror-co-uk.cdn.ampproject.org/v/s/www.mirror.co.uk/news/world-news/breakthrough-huge-roman-sewer-big-34248785.amp?amp_gsa=1&_js_v=a9&usqp=mq331AQGsAEggAID#amp_tf=From%20%251%24s&aoh=17337706443745&csi=0&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Fwww.mirror.co.uk%2Fnews%2Fworld-news%2Fbreakthrough-huge-roman-sewer-big-34248785
Breathtaking i would say.... :)
Good sewers are the foundation for good cities. And aqueducts! Did you see the report of Athens planning to reopen the aqueduct that Hadrian built to address modern water shortages?
I did and testament to the original engineering prowess!