beautiful village of tonnerre with the natural karst spring of fosse dionne

april architecture area artistic beautiful blue branch charming clear corner cozy crystal cute dionne doors flowers fosse foutain france french garden gem green hause hidden home house karst leaf leaves may medieval mystique natural nature outdoors plant rainwater remarkable river road romantic roof roses round rural rustic season shutters spring stone subterranean summer sunny tonnerre tourism transparent travel trees unique unusual village walking wall water weekend windows wonderful yonne