There is one place named Hollgraben in Austria.
All places in the world called "Hollgraben".
Sankt Georgen (8)
Sankt Martin (7)
Dorfl (7)
Sankt Leonhard (7)
Sankt Margarethen (7)
Oberdorf (6)
Kirchdorf (6)
Baumgarten (6)
Steinbach (6)
Wald (6)
Eben (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)
Kirchberg (6)
Winkl (6)
Strass (6)
Bach (6)
Hof (6)
Ried (6)