"Hinterbrühl (German pronunciation: [ˈhintɐˌbʁyːl] ⓘ) is a town in the district of Mödling in the Austrian state of Lower Austria. It is home to the Seegrotte, ...
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a system of caves including Europe's largest underground lake. During World War II, a satellite camp of Mauthausen concentration camp was opened inside the caverns, producing parts for the He 162 Spatz jet fighter." - (en.wikipedia.org 13.10.2023)
- Latitude48.083332061768
- Longitude16.233333587646
