Text, accompanied by a photograph, describing the ruins of Ostrog Castle located near the Kyiv-Brest railway station. Ostrog was once the residence of the Ostrogski princes. It used to be a merchant town, whose history, linked to the fate of the Sanguszkos and the Ostrogskis, is given later in the article. Also recalled is the Jesuit college where the body of Karol Chodkiewicz was laid to rest (Source: "Ziemia. Tygodnik Krajoznawczy Ilustrowany', Warsaw 1910, no. 41, pp. 3, 8-9, after: Wielkopolska Biblioteka Cyfrowa).