Sketches, engravings by Dutch painter Pieter Bruegel the Elder exhibited in Poland

A visitor views sketches of Dutch artist Pieter Bruegel the Elder in the National Museum in Warsaw, Poland, on Oct. 30, 2019. The National Museum in Warsaw hosted an exhibition of 30 sketches and engravings by the Dutch painter Pieter Bruegel the Elder. Bruegel is known as one of the most influential painters of his time. The exhibition was held at the 450th anniversary of Bruegel's passing away. (Photo by Jaap Arriens/Xinhua)