Mural Painting dominated the Mexican art scene for most of the first half of the 20th century. It's still often a characteristic of the arts today. In fact, some of those best represented in the sites we've listed are still alive and working.
Perhaps most shocking, the mural painting movement is a decidedly anti-Modernist movement. Coupled with the Functionalist architecture of the same period, mural painting gives you precisely the unique combination of styles, motifs, and legendary personalities that define the Mexico City of today.
It's a lot to look at. But it's also prescient in the minds, hearts, and spirit of Mexico City residents - even now.