Paint it.
repaper
repaper
repaper
A palindrome is a word that is spelled the same way backwards as it is forwards. The answer here is: repaper
The palindrome is repaper.
In many other versions, this question has been "What do you do if your wall covering is old and faded?" The palindromic answer is "repaper."
The great wall of china was probably a bright brown but over time it has probably faded to a dirty brown.
To enclose someone behind a wall is known as "to immure". It was a common theme of many old stories and might be found in many books.
There is no known purpose for it
Old Navy
It might be molding or crumbling because it's so old and all the different temperatures and humidity in China.
The wall is 28 years old.