view of town sisteron, provence, france with the famous citadel located on a rock above durance river with highway a51 in front.

citadel diminishing perspective highway france sisteron durance travel village river provence alpes-de-haute-provence autumn car castle center citadelle sisteron city cityscape clouds colorful colors day europe fall famous flowing fortification fortress french hill historic landscape motorway mountain people old popular provence-alpes-cote dazur riverbank road rock season stream sunny tourism tourist town transport trees view