Where might this be?

[Ian Nelson]

Sur le pont d'Avignon
l'on y danse

Been there, seen it, picked up wee broken bits of stones from the bridge, still got them somewhere
If you look at modern images you should know that bits have fallen off it since the picture was painted
of course, it doesn't reach the opposite bank .. and it's too far to jump

[Little Nell]

Mais, non, pas Avignon.

Unless there is a lot of artistic licence, there are no arch shaped openings in the stonework and the buttresses at Avignon do not reach to the top of the bridge.  No chapel in the middle either... and the river bank is much flatter at Avignon.

So I think the hunt is still on.... 

Nell