facts about the great wall of china
1. The authority length is 21,196.18 km (13,170.7 mi) — ; (6+ lines' worth) 
2. The majority of the present relics are the Ming Dynasty Great Wall: length 8,851 km (5,500 mi).
3. The Great Wall is over 2,300 years of age. 
4. The Ming Great Wall crosses 9 areas and districts: Liaoning, Hebei, Tianjin, Beijing, Inner Mongolia, Shanxi, Shaanxi, Ningxia, Gansu.
5. Badaling is the most visited segment (63,000,000 guests in 2001). Furthermore, in the primary seven day stretch of May and October, the guest stream can be up to 70,000 every day.
6. The normal tallness of the Great Wall at Badaling and Juyong Pass is 7.88 meters, and the most noteworthy spot is 14 meters high.
7. Almost 1/3 of the Great Wall has vanished without follow.
8. Since 1644, when the Ming Dynasty was ousted, no further work has been done on the Great Wall (for military purposes — a few has been reestablished for the travel industry).
9. Incredible Wall recreation and assurance started with Badaling in 1957.
10. In December 1987 the Great Wall was set on the World Heritage List by UNESCO.
some more bonus facts
1. The Great Wall of China can't be seen from space by the natural eye without help.
2. The Great Wall is certifiably not a persistent line: there are side dividers, roundabout dividers, equal dividers, and segments with no divider (high mountains or streams structure a hindrance all things being equal). In the Qin Dynasty (221—206 BC), glutinous rice flour was utilized to tie the Great Wall blocks.
3. The Great Wall workforce included troopers, coercively enrolled laborers, convicts, and POWs.
4. The First Emperor of Qin was not the first to fabricate the Great Wall. He connected the northern dividers of the states he prevailed.
5. There most well known Great Wall legend is about Meng Jiangnv, whose spouse passed on building the Wall. Her sobbing was harsh to the point that a part of the Wall imploded, uncovering her significant other's bones so she could cover them.
6. The Gubeikou Section of the Great Wall has projectile openings in it, proof of the last fight battled at the Great Wall .
7. During the Cultural Revolution (1966–1976), numerous Great Wall blocks were utilized in building homes, homesteads, or supplies.
8. The northwestern Great Wall areas (for example in Gansu and Ningxia territories) are probably going to vanish in 20 years, because of desertification and change in human land use.
9. The Jiankou Section of the Great Wall, known for being steep and winding, appreciates the most appearances on Great Wall picture books and post cards.
10. The most acclaimed segment of the Great Wall — Badaling — has been visited by more than 300 heads of state and VIPs from around the planet. The first was Soviet legislator Klim Voroshilov in 1957.