Pleven Fortress is a historical military structure located in Pleven, Bulgaria. Built in the late 19th century, it played a significant role during the Russo-Turkish War of 1877-1878. The fortress was designed to defend the city and was strategically important for the liberation of Bulgaria from Ottoman rule. Today, Pleven Fortress is a popular tourist attraction, showcasing its impressive architecture and historical significance. Visitors can explore the well-preserved fortifications, learn about the battles fought there, and enjoy panoramic views of the surrounding area. The site also features a museum that highlights its rich history.