Osowka Castle Project Riese

20th century1943Poland

CountryPoland

RegionLower Silesia

Period20th century

Year Built1943

About Osowka Castle Project Riese

Part of the mysterious Project Riese, a Nazi underground construction project. The purpose remains classified and debated. May have been a planned headquarters for Hitler. The underground tunnels stretch for kilometers. Slave laborers from concentration camps built them.

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