OK. but DD has put a link to it in his reply.. but you wanted to know where to find the list of topics. Here goes.
Under the green Wiki header there is a dark blue bar with the root to where you are on it. In my case, this is currently saying, in white letters -
'wirral forums > Forums > Wirral History
> Would this be advertising or not?' because that is the page we are on.
If you click on 'Forums' on that line, or in the light blue line beneath it, you will be taken to a list of all the forums on this site, e.g., Wirral History
You will see that each section has its own box which in turn contain the topics and their replies e.g., 'Would this be... etc.
So Forums is really your starting point to scroll down from.
Hope this helps.