[{SlideShowNav}] !!!Citadel of the Holy Spirit [{Image src='160lu.jpg' width='487' height='650' alt='Citadel of the Holy Spirit' class='image_left' popup='false'}] [{SET customtitle='Citadel of the Holy Spirit'}] \\ The Citadelle du St-Esprit (Citadel of the Holy Spirit) is one of the largest fortresses in Western Europe; it has changed hands many times and been held by many countries, including France, Germany, and Austria. The massive fortress has been likened to the one on Gibraltar.