That's wild, thanks. It's kind of impressive when you see really old lines get replaced and they are something like wood pipes with oakum seals.
What's crazy is some of the really old victorian area pipes are still in use in the UK, but they are these really well built brick masterpieces with some kind of special firing and some artisitic flourishes that most of the world will never see because it's way underground and full of sewage, and there are all kinds of abandoned subway stations in NYC, and other spots around the world from the same era that are just gorgeous with all kinds on beautiful carvings, cast metal accents on gates, benches etc and elaborate mosaic tiles..
And some of the pumphouses are just absolute works of functional art; I miss when things were built really well, but also looked good. Really like how a lot of places kept it up with manhole covers too; was recently in Vancouver and they have what looks like a commissioned art relief of 3 orcas in a Pacific FN style on them.
The Story of London’s Sewer System
Would be pretty funny to fast forward 20,000 years or so and if people are still around see what they make of all the weird things they excavate. Some of these sewers and other underground places may be mistaken for places of worship due to the level of time, effort and craftsmanship expended, while a lot of the modern concrete minimalist places will be long ground into dust.