I enjoyed the recent BBC4 series 'The Power of the Past' presented by Richard Miles. He finished the series at a landfill sites making the comment that never before in the past had such a massive human footprint been left behind for posterity. And whilst it was hard to imagine the people of future millennia would believe the 'stuff' in our landfill sites was important to us, he closed by saying that what was certain was that they would use the lens of their own values and belief systems to study whatever we leave behind.

But your statement that, “...the bath themselves were dedicated to Minerva ,a healing deity.” needs evidence (though given that the waters were already recognised before the Romans as a place of healing it’s not unreasonable to assume that they (the Romans) bestowed on Minerva, in the form of Minerva Medica, those attributes.

We must be careful of blanket attributes however - the hot springs at Bath may have (and probably did have) multiple reasons for going there. Reasons ranging from those mentioned above to just a jolly old soak with one’s mates. The thousands of onsen in Japan still function that way today - places to cure one’s ills, socialise, enjoy good food and even boil your eggs and vegetables if you’re lucky enough to live near one!