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Regensburg . Regensburg Porta Praetoria Tafel Sign of Roman castle Castra Regina in Regensburg VanaRooma kindluse Castra Regina silt Regensburgis own User Mattes GPS data may be inaccurate EXIF data regarding date and time may be inaccurate Commonist de FoPGermany Plaques in Regensburg Porta Praetoria in Regensburg