Bravo Murillo street, stretching two kilometers from Cuatro Caminos to Plaza de Castilla in Madrid, serves as a vivid illustration of social inequality, having historically been designed to demarcate between affluent and impoverished neighborhoods. The poorer side of the street is characterized by narrower sidewalks, fewer streetlights, more dirtiness, and less greenery, contributing to a higher heat retention during summer months. Furthermore, the presence of gambling establishments is notably higher, with 18 betting shops, many located alarmingly close to schools.

This division dates back to the aftermath of the Spanish Civil War, with the street being planned as a social boundary to separate different socioeconomic classes. Nearly 90 years later, the layout remains intact, largely untouched by any mayoral initiatives aimed at integrating or improving conditions on either side of the street. The persistence of this social experiment raises profound questions about urban planning and social responsibility in Madrid, highlighting the ongoing struggles of residents in less affluent areas.

The implications of this social experiment go beyond mere aesthetics; they affect the quality of life and opportunities available to residents. With lower life expectancy and poorer living conditions, the stark contrast on Bravo Murillo street serves as a commentary on broader societal issues, encouraging local authorities and citizens to reflect on the need for equitable urban development that addresses these systemic inequalities.