Welwyn Roman Baths

The remains of a Roman bathhouse sit beneath Welwyn Garden City like a secret the town keeps to itself. Walking into this museum, you're looking at the actual structural foundations and hypocaust systems - the underfloor heating that kept wealthy Romans comfortable around 70 AD. It's genuinely impressive how much has survived, though I'll be honest, the presentation could be sharper than it is.

This is absolutely one for history types and archaeology enthusiasts. Kids might manage twenty minutes if they're keen on Romans, but it won't hold their attention much longer than that. The site itself is fairly compact, so don't expect a sprawling day out.

The bathhouse tells you proper things about Roman life in Britannia - the engineering, the social hierarchy, how far the empire's reach extended. You get a real sense of what daily life looked like for the people who lived here nearly two thousand years ago.

If you're camping at Commons Wood or staying at Cherry Green Trees, both just a few miles away, it's a sensible rainy-day diversion or a morning's worth of exploring before heading elsewhere. Pair it with a walk through Welwyn Garden City's actual gardens - the town's main draw - and you've got a solid half-day sorted. Check opening hours and admission charges before you visit, though, as details aren't easily pinned down online.