Yeh I know what you mean, I visit fairly often and sometime nothing really catches my eye... I definately think its a plus to take a drive around at night, some of the buildings look sortve average by day and spectacular by night. I not sure where exactly in London you are but if you've ever seen the fancy looking college in Willesden by day and night you'll know what I mean, by night its a different picture altogether.... unfortunately the shots I took of it when I was last there went walkies off my camera somehow!