Acre's Crusader Fortress, located in the coastal city of Acre, also known as Akko, in Israel, is an enduring historical testament to the medieval Crusades in the Middle East. Established during the 12th century by the Hospitaller Order of the Knights of Saint John, the fortress served as a central stronghold and base of operations for the Crusaders during their campaigns. This massive stone structure features impressive fortifications, underground tunnels, and grand halls, illustrating the extensive military architecture of the time. Acre itself is a UNESCO World Heritage Site, with the fortress recognized as one of its most significant monuments. Visitors to the citadel can explore the well-preserved remnants of the Hospitaller period, as well furnishing a glimpse into the lives of the knights who once inhabited it. The halls have been restored and serve as a venue for events and exhibitions, with the site also offering a sound-and-light show narrating the history of the fortress and the city of Acre. The site merges the layers of its Crusader-era past with subsequent Ottoman modifications, creating a unique historical palette that spans centuries.