On July 27 at the 46th UNESCO World Heritage Conference held in New Delhi, India, the "Beijing Central Axis" was officially inscribed on the global body's World Heritage List. To learn more about the preservation efforts involved and the important role and function the axis still plays today, our reporter Yang Yan interviewed Lyu Zhou, head of the Beijing Central Axis World Heritage application team and director of the National Heritage Center at Tsinghua University, also in the Chinese capital.