Mount Heng's Hanging Temple is built on a cliff and looks as if it could fall at any moment.
Tips
mistakes
恒山 in Shanxi, the northern peak, and 衡山 in Hunan, the southern one, sound exactly alike. Tell them apart by the character: 恒 'constant' in the north, 衡 'balance' in the south.
history
Called 北岳 for short. Until 1660 the state sacrifices to the Northern Peak were made at Quyang in Hebei; the Qing then moved them to this mountain at Hunyuan in Shanxi, which has held the title since.