Hwaseong Fortress, a remarkable structure from the late Joseon Dynasty, stands as a testament to the era's architectural ingenuity and the poignant history of King Jeongjo's reign. Constructed between 1794 and 1796 in Suwon, South Korea, this fortress was designed to serve as a royal residence and to honor the remains of King Jeongjo's father, Prince Sado, who met a tragic fate. Recognized as a UNESCO World Heritage Site, Hwaseong Fortress encompasses a palace, extensive walls, and four main gates, reflecting the grandeur and strategic importance of that period.