The Old Fortress, also known as Kastel, is a historic site located in Kotor, Montenegro. It was built in the 9th century and served as a defensive structure against invasions. The fortress is situated on a hill, providing stunning views of the surrounding landscape and the Bay of Kotor. Visitors can explore the fortress's ancient walls, towers, and pathways, which reflect the rich history of the region. The Old Fortress is a popular tourist attraction, offering insights into the architectural styles and military strategies of the past. It is also a UNESCO World Heritage site, recognized for its cultural significance.