I spent the 03-04 year at Queen Mary and lived right on Regent's Canal. Walked the canal to Camden and beyond all the time. It's incredible how different it is now. Those areas were totally dead, the gas tank things were just these amazing skeletons, and the area mostly deserted until you got to Camden. It's the part of London that was bombed most heavily in the Blitz (fun fact, actually not fun fact: the first V1 bomb fell near here too, of especial interest to anyone who's read Gravity's Rainbow):
https://www.english-heritage.org.uk/visit/blue-plaques/flying-bomb/
I haven't done the canal walk in its entirety since then but the pictures blow me away of the amount of change. For anyone who's into urbanism, I highly recommend doing it though: it would be a long day to do it this way, but going from Canary Wharf all the way to Regent's Park is an incredible slice of many different London neighborhoods, and the canal connects them all.