How Exactly Did The Forbidden City Withstand Centuries of Conflict And Disaster (China)?

I've always marvelled how some structures, built centuries ago could withstand the harshest weather and still not crumble.

One such example is the Forbidden City. Not a single nail or drop of glue was used to hold the buildings together. Yet, it managed to withstand multiple earthquakes and fire over a 500 year history.

This documentary briefly talks about its history and sheds some light on the secret construction technique used to construct this magnificent historical site.

Enjoy!

https://www.youtube.com/watch?v=nbbHrWRBXF0