People visit the De Adriaan windmill during the National Mill Day celebration in Haarlem, the Netherlands, May 10, 2025. The National Mill Day is celebrated annually on the second weekend in May. (Photo by Sylvia Lederer/Xinhua)

People enjoy the view of the De Adriaan windmill during the National Mill Day celebration in Haarlem, the Netherlands, May 10, 2025. The National Mill Day is celebrated annually on the second weekend in May. (Photo by Sylvia Lederer/Xinhua)