You’re searching for Roman British remains nearly two millennia old. So you might well think the turn into Melyd Avenue can’t possibly be right. But perservere. This remarkable bath house, built about AD120 by a detachment of the 20th Legion based in Chester, really is in the middle of a perfectly normal housing estate. Here bathers would sweat profusely, oil their bodies and scrape them clean with a curved tool called a strigil. All because no one had invented soap.