The last letter of each place name must be the first letter of the next place name.
London Nottingham Margate Edinburgh
You can use the names of cities, towns, villages and hamlets anywhere in England, Wales, Scotland and N. Ireland. You can also use city districts and inner city areas such as Longton (S-O-T), Hulme (Manchester), Belgravia (London). Two word place names such as Leighton Buzzard are also fine.