So I was talking to DH tonight about how you can ask Mumsnet the most obscure thing like 'who is this man, tall 50's' and someone will come along with the correct answer within a few comments 
There was a thread I read a while ago OP wanted to know where they had visited as a child with this certain swimming pool
It had a fantastic diagram
Maybe I read it in classics? It should be in classics anyway
If anyone knows what thread I mean please can I have a link so I can show DH mumsnet impressive guessing skills