The United Kingdom Add-on for Ticket to Ride has 6 achievements worth 70 gamerscore.
Win a game while connecting Liverpool, London and New-York in that order. (Solo)
Win a game having the Southampton-New-York route without buying the Propellers technology. (Solo)
Win a game while claiming all routes to London. (Solo)
Win a game while buying the Boiler Lagging technology before claiming your first route. (Solo only)
Win a game while connecting only cities from Ireland and Scotland. (Solo)
Win a game while connecting France to Wales (any cities). (Solo)