Baltiysk Fortress is a historic military fortification located in Baltiysk, a town in the Kaliningrad Oblast of Russia. Constructed in the 19th century, it was designed to protect the entrance to the Vistula Lagoon and the nearby port. The fortress features a series of bastions, walls, and defensive structures that reflect the military architecture of its time. Today, Baltiysk Fortress serves as a reminder of the region's strategic importance and military history. It is a popular site for tourists and history enthusiasts, offering insights into the past and the role of fortifications in coastal defense.