Kostrzyn nad Odrą Fortress, Military fortress at confluence of Oder and Warthe rivers, Poland
Kostrzyn nad Odrą Fortress is a military stronghold built where the Oder and Warthe rivers meet, straddling the border between Poland and Germany. The complex features thick ramparts and several bastions, including the Berlin Gate and Kietzer Gate that still stand as entry points.
The fortress was built in the 16th century and underwent major transformations during the wars of the 17th and 18th centuries. It remained strategically important for competing European powers until it suffered severe damage during the 20th century.
The name derives from Slavic origins, reflecting centuries of settlement in this region. Visitors can see exhibitions in the preserved buildings that show how soldiers and officials lived and worked within these walls.
The best way to explore the grounds is by joining a guided tour that starts at the visitor center in the restored Berlin Gate. Wear comfortable shoes since the terrain is uneven and many paths go across the old ramparts.
Within the fortress walls, the old town center survives only as scattered foundation stones and cellars, which is why locals sometimes call it the Pompeii of the Oder. These remains reveal how densely populated the settlement once was before its destruction.
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