The Waterstones in Birmingham (the one nearest the Bull Ring centre and Pavillions Shopping Centre) has a copy of Ticket To Ride in their clearance zone. It makes me sad that I can't afford to snaffle it as it's a game I don't own and would love at that price but I though maybe it will make someone else's day instead. It's the North American one which I assume is the very first one.
It's tucked away on a bottom shelf in an alcove on the right as you go into the clearance area. It's on the same level as the scifi fantasy section. Good luck!