Bee honey products are displayed and on sale during the celebration of the first World Bee Day at the northern village of Zirovnica, Slovenia, on May 20, 2018. With waves of music and hails bursting out from a huge white meeting tent, a high-profile celebrating ceremony for the first ever World Bee Day was held in Slovenia on Sunday, signalling a further initiative by Slovenia to raise public awareness about the vital role of bees and other pollinators for humanity. (Xinhua/Wang Yaxiong)