In ancient times, Mt. Huashan was called Mt. Taihuashan. From a distance the five peaks seem to form the shape of a 'flower' (hua in Chinese), hence the name 'Huashan'. It is famous for its natural vistas of steep and narrow paths, precipitous crags, and a high mountain range. It is home to several influential Taoist temples where emperors of past dynasties made pilgrimages, making Mt. Huashan the holy land of Taoism.
Jinsuo Guan (Gold Lock Pass)：
When climbing over the 'Blue Dragon Range', regarded as the must-pass way to the other four peaks from North Peak, travelers arrive at Gold Lock Pass. Mt. Huashan visitors know that it is customary to buy a golden lock, and then lock it in the iron chains on both sides of the Gold Lock Pass for families and friends to pray for their safety and health. It is a marvelous spectacle to see thousands of golden locks in the iron chains. Within the mountain gate of Gold Lock Pass, a huge golden lock of about 4 meters (about 4.37 yards) long and 1 .5 meters (about 1.64 yards) high stands in a big rock. It is made of pure copper and forged by 9,999 locks left by visitors. It is a popular photo site. This huge lock can only be opened by throwing coins - one coin represent the status of an ordinary person; three coins, a blessed person and nine coins a most blessed one. Gold Lock Pass is the throat to Middle Peak, East Peak, South Peak and West Peak.
http://www.travelchinaguide.com/attraction/shaanxi/xian/mt_huashan.htm

360-degree panorama photography by yunzeng liu