There is one place named Zwirtner See in Austria.
All places in the world called "Zwirtner See".
Sankt Georgen (8)
Sankt Margarethen (7)
Sankt Martin (7)
Dorfl (7)
Sankt Leonhard (7)
Ried (6)
Wiesen (6)
Berg (6)
Egg (6)
Rettenbach (6)
Oberdorf (6)
Baumgarten (6)
Steinbach (6)
Kirchdorf (6)
Eben (6)
Wald (6)
Nussdorf (6)
Moos (6)
Neustift (6)
Neudorf (6)
Sankt Veit (6)
Sonnberg (6)
Mitteregg (6)
Au (6)
Sankt Johann (6)
Hub (6)
Brandstatt (6)
Schonberg (6)
Stein (6)
Strass (6)