It is called The Forbidden City because no one could enter or leave the walled city or Cheng, without the emperor's permission. Only imperial families and invited high officials can enter.
Within the palace fortified walls is an area of 728,000 square meters or 180 acres. It has 980 buildings and contain 9,999 rooms.
Please visit https://blog.billymacdeus.com/ for more lifehacks and tips.
Thanks for listening to The Quarantined Tipsters Podcast!