it takes a few monthes
not as long as my...
A long time
it depends on where you are to start.
1 day
500 years
221 bc - 206 bc
no one even knows how long it really is.
The Great wall of China would take you about 2 years and seven months to walk.
The great wall of china took aboue 200-2,000 years to build. It was a work of fine arts.
The original Great Wall built around 221 BC is believed to have been built over a period of about 20 years. The Great Wall of which there is most evidence for today was actually built during the Ming dynasty (in place 1368-1644), over a period of around 200 years.
china
5,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 years to get on top of the great wall of china.