I have read a bit about the great wall and like all wonders it has so many myths related to it. Real history is one aspect and the mythical aspect is truly another dimension.

Really enjoyed all pictures! As you said S7 great but the pictures from GoPro Hero 4 Black (did a little google search on it) are truly great.

The picture I liked the best is the eighth one from the bottom in the pictures titled 'Great wall photo captured with my GoPro Hero 4 Black'.
This one to be precise:

The depth created by the downhill slope is really intriguing and puts the length/size of the wall in perspective.

Thanks for sharing all this stuff man!