France
A Frenchman told me that the TGV from Aix to Paris is a fair bit cheaper and faster than from nearby Les Arcs.
Fondation Vasarely - a little down on its luck, but so worth visiting -for the building and the art, and the shop. Just a short bus ride from central Aix, by the Bus 4 and 6 - stop Fondation Vasarely.
www.fondationvasarely.fr/index_fl.html
www.aixenprovencetourism.com/aix-vasarely.htm
Search Been there