England’s ghost signs, or fading brick ads, are the most famous and numerous. There is a website Ghostsigns dedicated to them (above all in England, but also around the world) and on Facebook there are many groups dedicated to these old signs.
Suprisingly I didn’t come across that many during my trip, but here are a few.
Manchester
Leeds
York
London
Oxford
(faux ghost sign, advertsing a bar)