建康, also known as Jiankang, is a historical city located in present-day Nanjing, Jiangsu province, China. It served as the capital for several dynasties, including the Eastern Jin and the Southern Dynasties, making it an important political and cultural center during ancient times. The city is renowned for its rich history and beautiful landscapes along the Yangtze River. Today, 建康 is recognized for its historical significance and numerous cultural relics. The city features ancient architecture, temples, and gardens that attract tourists and historians alike. Its legacy continues to influence modern Nanjing, which is a vibrant metropolis with a blend of historical and contemporary elements.