Kłodzko Fortress (Polish: Twierdza Kłodzko, German: Festung Glatz) is a unique fortification complex of the Lower Silesian Voivodeship in southwestern Poland. The fortress once was one of the biggest strongholds in Prussian Silesia, however, in the whole German Empire, it was regarded as a minor one. Now, together with an extensive network of tunnels, it is one of the biggest attractions of the town of Kłodzko, with its underground labyrinth and a repository of different objects, from old fire engines to local glassware.