Over the past year we in London have all been watching the shard take shape. I have a splendid view of proceedings from my office window, so have watched it on a daily basis. From the angle that I look at it from, it looks like the Bat Building, with ears.
So the BBC video on this link is definitely worth watching, a beautiful vide of London and the building, and why its special.
You should also definitely check out the Shard website, even if just for some of the incredible pictures / mockups of what its going to look like.