Don't leave the Forbidden City without it

Riding Sun's new research assistant and field reporter, the beautiful and intrepid Dusky, went to Beijing last week on a business trip.

While sightseeing in the Forbidden City, she snapped this picture of a sign on the Hall of Union and Peace (Jiao Tai Dian, also known as the Hall of Prosperity), where, centuries ago, the Qing Dynasty empress received well-wishers on her birthday: