Went to the Roman baths and museum. It's a very layered place, starting with a spring and thousands of years of building and rebuilding around it. The Romans, and the Victorians, raising the water to different levels, controlling its flow, worshipping, praying, bathing, decorating, exercising. The Romans used lead for all their pipes, also amazing sluice-gate engineering. The caldaria I found most impressive with their piles of tiles in little pillars under the floors, then in adjacent rooms people would shovel in coals, or hot water would flow through. I was also amazed by their hollow bricks - made using a slab-rolling technique, wrapped around a block and then fired with the block in pace. This enabled them to make a massive vaulted ceiling as the hollow bricks were strong but light. I had a taste of the water - not the stuff from the actual pool, which looks orange, manky and gross (apparently all of the springwater has quite a bit of iron in it, hence the orange staining), it...