The Akká Citadel, also known as the Akko Citadel, is a historic fortress located in the city of Acre, Israel. Built during the Ottoman period in the 18th century, it served as a military stronghold and played a significant role in the region's defense. The citadel features impressive walls, towers, and a series of underground tunnels. Today, the Akká Citadel is a UNESCO World Heritage Site, attracting visitors with its rich history and architectural beauty. It is part of the larger Old City of Acre, which is known for its diverse cultural heritage and historical significance, including connections to the Crusades and Bahá'í Faith.