Chairman of the Germany's Social Democratic Party (SPD) and Vice-Chancellor Lars Klingbeil shakes hands as he arrives for a May Day demonstration with the motto "together for good work" of trade union IGBCE (IG Mining, Chemistry, Energy) in Bergkamen, on May 1, 2026. (Photo by INA FASSBENDER / AFP via Getty Images)

A man takes photos on the Great Wall of China at Badaling, north of Beijing, on May 1, 2026, on the first day of a five-day national May Day holiday. (Photo by GREG BAKER / AFP via Getty Images)

A client walks out of a flower shop in Quimper, western France, on May 1, 2026. The debate over whether independent bakers, florists and other small traders should be allowed to employ staff on May 1 has taken on a national dimension in recent weeks, with the government indicating that bakers and florists may open with their staff as of this year, before a bill formalises the arrangement from next year. (Photo by Fred TANNEAU / AFP via Getty Images)

People climb the Great Wall of China at Badaling, north of Beijing, on May 1, 2026, on the first day of a five-day national May Day holiday. (Photo by GREG BAKER / AFP via Getty Images)

Chen Yuxi (R) and Lu Wei (back) compete in the women's 10m synchronised diving at the World Aquatics Diving World Cup Super Finals 2026 in Beijing on May 1, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

A man carries a child in a basket as he takes photos on the Great Wall of China at Badaling, north of Beijing, on May 1, 2026, on the first day of a five-day national May Day holiday. (Photo by GREG BAKER / AFP via Getty Images)

A client purchases a bouquet of lily of the valley in a flower shop in Quimper, western France, on May 1, 2026. The debate over whether independent bakers, florists and other small traders should be allowed to employ staff on May 1 has taken on a national dimension in recent weeks, with the government indicating that bakers and florists may open with their staff as of this year, before a bill formalises the arrangement from next year. (Photo by Fred TANNEAU / AFP via Getty Images)

An employee is at work in a flower shop in Quimper, western France, on May 1, 2026. The debate over whether independent bakers, florists and other small traders should be allowed to employ staff on May 1 has taken on a national dimension in recent weeks, with the government indicating that bakers and florists may open with their staff as of this year, before a bill formalises the arrangement from next year. (Photo by Fred TANNEAU / AFP via Getty Images)