It was once the royal residence of two qing emperors taizu nurhaci and his son taizong huangtaiji and second only to the imperial palace in beijing in scale . this magnificent architectural edifice is famous for its unique blend of manchu and han architectural styles ：建于1625至1636年，除北京故宫以外，这个清太祖努尔哈赤和清太宗皇太极曾居住的皇宫是中国现存第二大的宫殿建筑群。
