Forbidden City walls getting major repairs
The Palace Museum, also known as the Forbidden City, has begun a restoration project to keep the walls from collapsing.
Experts recently finished a survey on the condition of the 3,437 meters of wall. It shows hidden hazards: some sections have been hollowed out over time, and are sagging. Grass and tree roots that have infiltrated gaps pose another major threat to their stability.
The western walls have sustained the most damage. A 233-meter section on that side has been chosen as the first target for renovation. Plans for the rest are pending.
The original work on the Forbidden City dates to 1420. They have an earthen core, protected by outer bricks.
Zhao Peng, a museum engineer who is leading the restoration project, said his team will stick to traditional Chinese construction methods, but he also acknowledged expected difficulties.