Cerro Rico was once the largest silver mine in the world. Five hundreds years on, deposits are nearly exhausted. Miners are forced to work deeper and deeper, in increasingly dangerous conditions. "We're forced into this business by poverty", states one teenager. "I have to work day and night to support my family". Officially, workers have to be 16 to go down the mines. But in the poorest regions of Bolivia, these rules are often ignored. Fourteen year old Jesus earns €4 a day from working in the mines. After a long shift, he has to go to school. "I always get headaches during my shifts and can't concentrate on my studies".