In bold, bright colours, it shows a copper miner, a student, a fisherman and a member of Chile's largest indigenous community, the Mapuche.
Wander down the road to the headquarters of the CUT, the country's main trade union federation, and you find another mural overlooking a courtyard. This one tells the history of the country's workers.
Both walls are painted in the same distinctive style. The colours are primary and the faces - often indigenous in their features - are outlined in thick black lines.