This famous fort the name of which we always ignored is other one than the Popes' Palace of Avignon with the tower Philippe Lebel in the foreground. However only 4 references are known this day.. Stop of the production or the very small edition? The future will say to it to us.
4 parts are quite also rare the some as the others. The bell towers of the cathedral are often incomplete.

Pont du Gard
Cathedral of Chartres
Chenonceaux castle
Popes' Palace of Avignon
Monuments of France
Bridge of Gard