London literally disappears at 16 (the 17th click puts it outta there), and that's only because Google are too lazy to mark the capitol of the United Kingdom on the map. However if we went on the borough of where I grew up? Barnet Disappears at 11. If we go on the place I currently live? Wimbledon doesn't really ever appear because it's actually not called Wimbledon, it's called Merton. The biggest mark you get is Wimbledon Common which disappears at around 9 The only mark for Merton disappears at the same time.