Rumeli Fortress (Rumeli Hisari)

Built over just four months in the 15th century, Rumeli Fortress stands as a testament to Ottoman strategic prowess. Situated on the Bosphorus in Istanbul, it was constructed alongside the Anatolian Fortress to effectively cut off aid and supplies to Byzantine Constantinople, playing a crucial role in its fall. Today, visitors can explore the fortress’s well-preserved walls and towers, and experience its transformation into an open-air theater, where historical significance and cultural events converge.