You already know me.
London is two cities. If you visit London you need to see London One, the London I love, the backstreets, housing estates and rooftops. If you only see London Two, the London I hate, the tourist stands, Big Ben and shopping malls then you will feel cheated.
Everyone should visit London One, it's just bafflingly wonderful.
It's in Crystal Palace. It's the Sutro Tower of London.