The Abelardo L. Rodriguez Market is a traditional public market located in the historic center of Mexico City, northeast of the main plaza, or Zocalo. It was built in 1934 as a prototype for a more modern marketplace and has a number of unusual features such as day care and an auditorium. However, the market's most distinctive feature is the approximately 1,450 square metres of wall and ceiling space covered in murals. These murals were painted by muralists, some former Diego Rivera helpers. Rivera had a role in approving artist designs, but little else.. The works mostly reflect socialist themes, such as the exploitation of workers, peasants and miners, the fight against Nazism and fascism, and racial discrimination. Earthquakes, time, humidity and vandalism took their toll on the murals