Pamplona

Travel from Paris, Garde du Nord-train station, to Compiegne from where you can take Bus27 to Pierrefonds... As a warning, I only met two people in this fairytale town who spoke English, yet the community were so helpful as we communicated in an unspoken language.

Did you ever watch the series "Merlin"? Are you keen on walking through the castle where they shot scenes for the series?

Or are you keen on visiting a Middle Ages-castle? Your answer = Château de Pierrefonds. No furniture in the interior, yet simply beautiful.