For three days in February, the thin, cold air of the high-altitude mining town of Oruro comes alive to the sound of hundreds of marching bands, while dancers in elaborate costumes enact tales of their Andean past. The festival culminates outside the cathedral with a performance of the diablada – a dance representing the struggle between Good and Evil.
The Carnival of Oruro is a religious and cultural festival in Oruro, Bolivia. It has been celebrated since the 18th century. Originally an indigenous festival, the celebration later was transformed to incorporate a Christian ritual around the Virgin of Candelaria. Wikipedia