An artist paints with chalks during Pasadena Chalk Festival in Pasadena, Los Angeles County, the United States, June 18, 2023. The weekend of June 17-18 marked the 30th Annual Pasadena Chalk Festival. Over 500 artists from all over the world came together to celebrate the unique art form. (Photo by Zeng Hui/Xinhua)

An artist paints with chalks during Pasadena Chalk Festival in Pasadena, Los Angeles County, the United States, June 18, 2023. The weekend of June 17-18 marked the 30th Annual Pasadena Chalk Festival. Over 500 artists from all over the world came together to celebrate the unique art form. (Photo by Zeng Hui/Xinhua)

An artist paints with chalks during Pasadena Chalk Festival in Pasadena, Los Angeles County, the United States, June 18, 2023. The weekend of June 17-18 marked the 30th Annual Pasadena Chalk Festival. Over 500 artists from all over the world came together to celebrate the unique art form. (Photo by Zeng Hui/Xinhua)

An artist paints with chalks during Pasadena Chalk Festival in Pasadena, Los Angeles County, the United States, June 18, 2023. The weekend of June 17-18 marked the 30th Annual Pasadena Chalk Festival. Over 500 artists from all over the world came together to celebrate the unique art form. (Photo by Zeng Hui/Xinhua)