You can paint them, but never erase them.

Art is a synonym of resistance. When the mayor of Lima decided to erase the city's murals, this idea helped to keep them on the streets. Indelible Street Art began as a personal project, then it was supported by the Museum of Contemporary Art. My older brother, who works in the cultural entertainment industry,  told me that his teachers in the master's degree program used the idea in their classes as an example.