Citadel of the Holy Spirit#
![Citadel of the Holy Spirit Citadel of the Holy Spirit](/attach/Geography/Europe/Luxembourg/Pictures/Factbook_Pictures/160lu/160lu.jpg)
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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.