Much of the ingenuity of these long-ago kingdoms lie in the thoughtfulness and strategic approaches that were taken to ensure that safety and security were maintained.
In a stunning example of city fortification, the walls that surround the old city of Xi’an is without doubt of the oldest, biggest and best-preserved city walls from ancient times to be found in China. Stretching across 14 kilometres there is much to be appreciated by the monolithic watchtowers built to monitor against intruders, the drawbridges as well as the gate towers.
Now, this site is used as a popular stretch of land for people looking to go for a stroll or simply ride their bikes. You can even enter the wall and view the city life as well!