Miracle: See how Wu Zetian chose the tomb of 400,000 people.

After Tang Gaozong's death, Wu Zetian asked Yuan Tiangang and Li, famous magicians in the ruling and opposition circles at that time, to choose the site for the emperor. Wu Zetian sent envoys to inspect. At the top of Liangshan Mountain, Yuan Tiangang said that he buried a copper coin here, and Li said that he ordered an iron nail here. Digging the ground, Li's nail was just inserted in the copper square hole buried by Yuan, and everyone present applauded in surprise.

So Wu Zetian chose the mausoleum site in Liangshan, which is now the dry mausoleum. As far as geomantic omen is concerned, Ganling surpassed all the imperial tombs in the Tang Dynasty.