Pablo Picasso, 1937. The Spanish Civil War bombing of the Basque town, rendered in black-and-white anguish. 3.5 × 7.8 m. Museo Reina Sofía, Madrid.
From Wikipedia
Guernica, officially Gernika in Basque, is a town in the province of Biscay, in the Autonomous Community of the Basque Country, Spain. The town of Guernica is one part of the municipality of Gernika-Lumo, whose population was 17,033 as of 2024.