I think Bath is called Bath because the Romans built the Roman Baths in Bath. I do not know for sure but this is the obvious assumption. Bath used to be called Aquae Sulis. (Aqua...) :) From...
Several. The smallest I saw in Italy were two rooms with two different baths, but the largest had 4-5 rooms. It just depended on who the bath was for. The wealthy had larger complexes for baths than...