Rumeli Fortress is a historic fortress located on the European side of the Bosphorus Strait in Istanbul, Turkey. Built between 1451 and 1452 by the Ottoman Sultan Mehmed II, it was strategically positioned to control maritime traffic and protect the city from potential invasions. The fortress features impressive stone walls, towers, and a commanding view of the surrounding area. The fortress played a significant role during the Ottoman Empire and has since become a popular tourist attraction. Visitors can explore its well-preserved structures, enjoy panoramic views of the Bosphorus, and learn about its historical significance through various exhibitions.