SMF - Just Installed!
Buy an old banger and abandon it before you leave, providing its not stolen before then!
Unless you have a motbke then I think the tube is the best way to get around but the bus might be afford more of a view. I was a London despatch rider back in the 80s/90s, during that time the Albert memorial was covered in scaffolding and plastic sheeting, I actually got to see it a couple of months back - its really quite impressive.