We couldn't see the huge Diego Rivera mural at the Palacio Nacional (closed off because of student protests) so we found solace
in the murals in the Mercado Adalberto L. Rodriguez, which I learned of in the Whitney's recent "Vida Americana: Mexican Muralists Remake American Art, 1925-1945" show. Not all was visible but it was fun to discover this work by many artists in a thriving market