europe, france, bas rhin, obernai, guard tower and rampart

age alsace alsatian ancient architecture attraction bas beffroi building castle city cityscape colorful construction culture day defence defensive downtown elsass exterior facade famous fort fortification fortified fortress france french guard hall heritage historic historical history house landmark landscape mediaeval medieval military monument obernai old outdoor picturesque protection rampart ramparts rhin route scenery scenic sky stone street structure summer tower town traditional travel urban view village visit wall watch wine