Lappeenranta Fortress is a historic fortress located in the city of Lappeenranta, Finland. The fortress was built in the late 18th century and played an important role in the Russo-Swedish War of 1788-1790. The fortress was designed by the Swedish architect Augustin Ehrensvärd and was built to protect the eastern border of Sweden from Russian attacks.
The fortress is situated on a hill overlooking Lake Saimaa and the city of Lappeenranta. The fortress is surrounded by a moat and a series of walls and bastions. The main entrance to the fortress is through the King's Gate, which is decorated with the Swedish coat of arms.
Inside the fortress, visitors can explore a number of historic buildings and structures, including the Orthodox Church of the Intercession, the Commandant's House, and the Gunpowder Magazine. The Orthodox Church of the Intercession was built in 1785 and is one of the oldest Orthodox churches in Finland. The Commandant's House was built in the early 19th century and served as the residence of the fortress commander. The Gunpowder Magazine was used to store gunpowder and other explosives.
Visitors can also walk along the fortress walls and enjoy panoramic views of the surrounding area. The fortress is open to the public and offers guided tours and educational programs. The fortress is a popular tourist attraction and is considered one of the most important historical sites in Finland.