Photo of the Day

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.
Photograph by Dean Conger, Nat Geo Image Collection