The imperial residence is very large, the periphery is a simple and solemn city wall, and there are many pine and cypress planted inside. The ground is paved with many gravel, and walking on it will make a rustling sound, it is said to protect the emperor, so that when the assassin approaches, the foot will make a sound of rubbing with the stones, and the guards will notice the solemnity of the imperial palace and the beautifulness. In the middle of the Imperial Palace Square, there is a large fountain built to commemorate the marriage of the Prince of the Crown. There is a double bridge on the south side. When the cherry blossom season, the cherry blossoms here are even more beautiful. Usually the imperial residence outside the garden is free to open, is a green square where citizens can walk, and the imperial residence can only enter during special periods or by appointment in advance, the main entrance will be guarded by police, and tourists can only watch the appearance.