Nanjing Museum is one of the four most important national museum collections in China. Founded in 1933, at which time Nanjing was still the capital city of China, it is one of the oldest museums in the country. It was extended in 1999, with the opening of a new art gallery in the Liao style; now, following eight years of planning further expansion, new gallery space will open in November 2013. The collection is exceptional not just for its size, but for its quality and diversity. It contains unique items from all over China and local Jiangsu Province and from a wealth of archaeological digs. The book details over 300 pieces from the collection. These are among the most valuable and precious artifacts, including those transferred south from Mudken and Rehe that survived the war and Chiang Kai-shek's flight to Taipei, those local to Jiangsu Province and a wealth of archaeological discovery.