- kultura.poznan.pl mim/kultura/en/news/culture,c,…This year, as part of its ninth edition, members of the public will get to see at least twenty major military defensive structures that once made up the Poznań Fortress.
- 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.
- russianarchives.com films/fortress-poznan/March, 1945 Poznan city and fortress destroyed by Soviet aviation units (removed from the air).
- flickr.com photos/ewitsoe/34527105203Urban Fence. Where every home becomes a fortress. HFF. Join me on my personal website Erik Witsoe or contact me at ewitsoe@gmail.com for cooperation.
- openarium.ru poi/85535395/
- quizquizgo.com map/124322-where-is-poznan-fortressWhere is Poznań Fortress? Coordinates: 16.9352 52.4219. Show larger map.
- aztekium.pl azbot.py…Aztekium Bot. History of Poznań. Posen (region). Prussian Settlement Commission. Arthur Greiser. ... Poznań Fortress. Polish National Committee (1848).
- 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.