Yesterday, after years of wishing to, I finally took the Glasgow Central Tour and it was really brilliant - the best £13 I have spent in many a long day. I certainly gave me lots to consider - social history, industrial archeology, hiddenness, revelation and muchmore.
This post is really a bit of an advert - if you are in Glasgow, have legs that can walk for an hour or so (alas it's unsuitable for anyone who isn't mobile) it's well worth it.
Also good when the only person able to recite the motto 'nemo me impune lacessit' in Scots is me!!