The Potala Palace, a UNESCO World Heritage Site in Lhasa, China's Xizang, witnesses no fire report in the past 40 years. Since 1984, firefighters have been organized to patrol this ancient building every day to keep it safe. Thanks to the efforts of the firefighters, though there are numerous rooms and thousands of butter lamps, no fire has broken out since then. (Xinhua)

Photo: Xinhua

Editor: Pan Lu

Translator: Ni Weijing

Review: Li Chengye, Zhang Qi, Jia Dan