French artist Etienne Lavie presented what European cities would look like if street advertising posters in them were replaced with classical painting. He chose Milan for experiments and Paris is a city inextricably linked with the formation of classical art. However, Lavi did not really outweigh the posters: the pictures were added in the photo editor. He called the action "Oh my God, who stole my advertisement?".
Etienne Lavie does not explain why to replace advertisements with paintings. This role on his website is performed by the "Blah-blah-blah" section, which looks like this.