Slightly biased as this is where I live, but Stoke Newington is great place to spend lazy saturday / sunday afternoons getting sloshed with friends. There are 10 + pubs within walking distance who all are great places for one reason or another. I'll pick out the White Hart for its huge beer garden...
Greatest "free" bar view over London. The Heron Tower is a commercial skyscraper in London. It stands 230 metres tall including its 28-metre mast making it the tallest building in the City of London financial district and the third tallest in the UK.