Introduction to the Treasure Hall: What is amazing is the golden locomotive clock, a national treasure of the Qing Dynasty, on display in the "Treasure Hall". This is a tribute from France to the Qing court, made of yellow, white and black gold. Weighing 84.50 pounds, it is equipped with a clock and a barometer, and is well wound so that it can travel along the track. This national treasure was the collateral used by Empress Dowager Cixi to borrow money from the Cao family via Beihuan when she fled to Xi'an. Another treasure is Qiu Ying, a great painter of the Ming Dynasty, who copied "Along the River During the Qingming Festival" by Zhang Zeduan of the Northern Song Dynasty. The scroll is 7.74 meters long and 0.45 meters wide. There are 1,643 figures and 208 livestock on it. It is vivid and lifelike and priceless. Also on display are treasures such as feather mirrors, ancient Baiyan pottery from the Shang Dynasty, and broken porcelain from the Ge Kiln.