How thick are the walls on the Great Wall of China?

The great wall of China is actually a series of many walls that were eventually built to meet and join with each other.

The various walls that make up the great wall vary in thickness widely from as little as 6 inches to a maximum width of around 30 feet.

However; the most famous portions (where you would normally walk if visiting and what is typically shown in film and literature) average a width of around 16 feet.

Most of the wall is in the range of 15 to 20 feet wide; with only small sections going much lower or higher.