Olympic Day, celebrated internationally on June 23, honors the founding of the International Olympic Committee.

Every year, millions across the globe celebrate the day by participating in Olympic Day Runs, charity events, and other activities.

But in Yingxiong Shan of Ji'nan city, Shandong province, training for these fitness enthusiasts is a daily affair.

Every day, tens of thousands of people, most of them around 50 or more, gather here to work out. They use simple facilities.

but they are real fitness artists. (Photos: VCG)