Went to Marseille ground last week again, loved it but might be because of my affinity with Marseille. Been to a match there before, amazing atmosphere as it;s huge and the fans are mental. It is great seeing it for the first time as it is on the Du Prado (lovely posh street) and you have no idea until you suddenly see the stadium to your left and it actually looks properly good. They are renovating it too and those pictures look crazy. Went to the Montpellier ground on Saturday to watch Marseille play them, big ground actually and has one great 3 tiered stand. As Jip says Lazio and Roma share too and their sets of fans hate each other more than those two easily