Having just googled to remind myself what Wayne Manor looked like, the old college building could just about pass itself off as the home of Batman, from the outside at least.
It was actually built as a Victorian girl's residential school and over the years G and I have variously referred to it as Gormenghast or Hogwarts due to the complexity and strangeness of the interior layout.
You can have taught there for years, only to realise that your new class is being taught in a room that you have no idea of how to find. It usually turns out to be through a door you have never previously noticed and then up a strange little staircase. :)