The Ottoman Citadel, also known as Cairo Castle, is an ancient fortress located in Taiz, a city in southwestern Yemen. This fortress stands as a historical symbol of the city, perched on a hill overlooking the urban area below. Built during the Ottoman Empire's reign in the 16th century, it was a strategic military site intended to protect the city and control the surrounding areas. Despite the ravages of time and human conflict, the citadel has retained many of its old structures, including walls, gates, and towers, many of which exhibit the typical Ottoman architectural styles. The citadel also played a central role during the recent conflicts in Yemen, serving as a key defensive position due to its strategic location and panoramic views. To this day, the citadel remains an important cultural and historical site, giving visitors a glimpse into Yemen's rich history and the legacy of the Ottoman Empire's presence in the region.