A total of 99 senior couples celebrate their 50th wedding anniversary, also known as the golden wedding anniversary, at a scenic spot in Yantai city, East China's Shandong province, on Oct 8, 2016. [Photo/IC]

Sunday marks the Double Ninth Festival, or the Chongyang Festival, a traditional Chinese event that falls on the 9th day of the 9th month of the lunar calendar each year. In Chinese traditions, it's a day to show respect and love to the elderly.