Photo of the Day
Each day, we highlight one extraordinary photograph from National Geographic. Check out more of our photos here.
Picture of demonstrators waving red flags in Red Square in Moscow
May 1, 2021 | May Day
In this photo from the March 1966 issue, workers wave red flags as part of a demonstration in Moscow's Red Square on May Day. Long celebrated as a festival of spring, May 1 also became International Workers' Day in 1889.
