- tripswithkids.eu fort-va-poznan/We went with the children to visit one of the buildings Fortress Poznan. Particular object was a fort Va "Zwischenwerk Bonin" located at Lechicka Street.
- bicycletouringpro.com exploring-a-partially-…During my time in Poznan, Poland I met up with Pawel from Poznan, I Love You and he arranged for me to have a private tour of a partially destroyed fortress on...
- 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.
- thearmoredpatrol.com 2015/06/27/pictures-from-the…Pictures from the Poznan Fortress Museum. June 27, 2015 ~ Sebastianul. Picture heavy, around 40 pictures.
- staypoland.com about_poznan.htm/The city experienced intense industrial growth and became an important military centre for Prussia, known as Festung Posen (Fortress Poznan).
- openarium.ru poi/85535395/
- dvidshub.net news/337192/7th-poznan-fortress-daysThis is the seventh annual celebration of Poznan Fortress Days, which occurred on August 24- 25 and highlighted over 20 different locations and attractions...
- russianarchives.com films/fortress-poznan-fuuid-…March, 1945 Poznan city and fortress destroyed by Soviet aviation units (removed from the air).
- de.zxc.wiki wiki/Festung_PosenRemains of the so-called Dom Schleuse (interior view). literature. Hugo Sommer: The Poznan fortress and its Prussian commanders .