Introduction to the magnet door: The magnet door is one of the gates of Qin Afang Palace. It uses a magnet as a door. First, it is to prevent assassins. The iron-absorbing effect of the magnet prevents those with hidden armor and swords from entering when entering. Pass, thereby protecting the safety of the emperor; second, to show the magical function of the front hall of Qin Afang Palace to the "Siyi Dynasty", so that they would be frightened and frightened. The exact location of the magnet door has always been divided into different opinions. The recreated magnet door was built based on relevant historical materials and the geographical characteristics of the garden area. It is 13.2 meters high (from the horizon to the roof ridge), 20.4 meters long from east to west, and 12.17 meters long from north to south.