North Korean workers take part in a tug of war as they celebrate May Day at the Pyongyang Thermal Power Complex in Pyongyang, North Korea, Monday, May 1, 2017. International Workers' Day, which is also known as Labor Day in some countries, is being celebrated worldwide.
North Korean workers take part in a tug of war as they celebrate May Day at the Pyongyang Thermal Power Complex in Pyongyang, North Korea, Monday, May 1, 2017. International Workers' Day, which is also known as Labor Day in some countries, is being celebrated worldwide.