At the Blaise Castle Estate, the ladies' room had sinks mounted into what had been a large formal window with shutters that could be closed in various combinations. They were painted shut, but they used to be quite elegant.
And to the left of that, the fireplace. :-)
At Alison's house where I was staying, the bathroom attached to the bedroom I was in also had a vestigial fireplace, but rather than having the coal insert or anything, it was plastered smooth, painted, and contained an artfully arranged collection of toilet paper.