The remains of the former Tyagin fortress are located on the island of Bolshoye Gorodishche near the village of Tyaginka, not far from the confluence of the Tyaginka River with the Dnieper. In 1491, after seizing these lands from the Principality of Lithuania, the Crimean Khan Mengli Giray rebuilt the Lithuanian castle into a fortress, which became one of the strongholds for Tatar raids on Ukrainian lands. In 1492, here, near the island, the Zaporozhian Cossacks captured a Turkish war galley and freed civilians from captivity. This date is considered to be the first mention of the Cossacks and the year of foundation of the Zaporozhye Cossacks. In 1992, on the territory of the former fortress, a monument-column was erected in honor of the 500th anniversary of the Ukrainian Cossacks "Cossack Glory" with the figure of St. Michael the Archangel. In the 17th century, the Cossacks made trips to the Tyagin fortress three times: under the leadership of colonels Filonenko and Semyon Paliy and the ataman Ivan Sirko. The fortress was finally destroyed in the 18th century. In 1912 the ruins of the fortress were explored by the founder of Kherson Regional Museum Viktor Goshkevich. Fragments of the walls of the fortress and the remains of its earthen ramparts have been preserved on the shore near the old bridge.