- en-academic.com dic.nsf/enwiki/1966792
- altehauptstadt.blogspot.com 2010/08/konigsberg-…
- wikidata.org wiki/Q571409
- structurae.net en/structures/konigsberg-castle
- tr.2markers.com 501146Königsberg Castle — bulunan yerel cazibe Tsentral'naya Ploshchad', 1, Kaliningrad, Kaliningrad Oblast, 236022 ve kategorisine ait — castle.Bulunamadı: sovyetler
- wikious.com en/Königsberg_Castle
- facebook.com KoenigsbergCastle/
- http://world.meros.uz en/wonder/view?id=535