Vladivostok Fortress is a complex system of unique fortifications, built in the end of the 19th–the beginning of the 20th centuries in Vladivostok, Russia.
Vladivostok fortress is the unique long-term complex of fortifications built in the late XIX - early XX century in Vladivostok and the surrounding area. While constructing, the recent experience of the Russian- Japanese war was taken into account, so the castle is the most fortified of all the fortresses built and rebuilt at this time. Construction of the fortress was halted with the structure about 2/3 complete, due to the disruptive combination of the First World War and the October Revolution.