chinadaily.com.cn | Updated: 2021-05-06 10:07 Share CLOSE People visit the memorial site of the First National Congress of the Communist Party of China in Shanghai, May 1, 2021. [Photo/Xinhua] Editor's note: Read tourism is booming, as was seen during just concluded May Day holiday. Why has red tourism become so popular, especially among youths? Three experts share their views on the issue with China Daily's Yao Yuxin. Excerpts follow: Centenary fuels people's passion for red sites Red tourism, or a subset of tourism in which people visit sites with historical significance for communism in China, is booming in the country with the number of trips increasing tenfold to 1.41 billion from 2004 to 2019. And judging by huge number of people visiting such sites during the just concluded May Day holiday, red tourism is expected to grow further this year, as it marks the 100th anniversary of the founding of the Communist Party of China.