A man admires the M22 painting by Polish artist Wojciech Fangor at a gallery in Warsaw, Poland, on Dec. 4, 2020. The M22 painting was sold on auction in Poland fetching 7.3 million zloty (1.98 million USD) from a private buyer. (Photo by Jaap Arriens/Xinhua)

The M22 painting by Polish artist Wojciech Fangor is on display at a gallery in Warsaw, Poland, on Dec. 4, 2020. The M22 painting was sold on auction in Poland fetching 7.3 million zloty (1.98 million USD) from a private buyer. (Photo by Jaap Arriens/Xinhua)