- thearmoredpatrol.com 2015/06/27/pictures-from-the…Pictures from the Poznan Fortress Museum. June 27, 2015 ~ Sebastianul. Picture heavy, around 40 pictures.
- wblog.wiki nn/Poznań_FortressPoznań Fortress, known in German as Festung Posen (Polish: Twierdza Poznań) was a set of fortifications in the city of Poznań (German: Posen) in western...
- en-academic.com dic.nsf/enwiki/14420Due to its strategic location, the Prussian authorities intended to make Poznań into a fortress city, building a ring of defensive fortifications around it.
- russianarchives.com films/fortress-poznan/March, 1945 Poznan city and fortress destroyed by Soviet aviation units (removed from the air).
- Mamy dla Was wiadomość Właśnie zostały ogłoszone daty XII Dni Twierdzy Poznań | 12th Poznań Fortress Days.
- ORP Poznań - minelayer-landing ship of Polish Navy. The Poznań - a football supporters' celebration. Poznań Fortress - fortress in Poznań.
- fortress-books.com en/catalogue/fortification-in-…...book in the beautiful series of books about fortifications / fortresses (mostly 19th & 20th century) in Poland, all made by Tomasz Kowalski c.s. - Fortress Poznan.
- openarium.ru poi/85535395/
- http://poznan.travel en/r/wydarzenia/tylko-w-poznaniuDuring the two weeks one can rumble through exciting flea markets, attend live concert and /or try local cuisine. More information. 3. Poznań Fortress Days.