Craftsman Andres Pari works on a metal mask for the dance of La Morenada, before the traditional “Fiesta del Senor del Gran Poder” or “The Feast of the Lord of Great Power” in La Paz, Bolivia, May 26, 2015. As many as 20,000 performers prepare for months in advance, practicing steps, searching for flashy jewelry, and embroidering elaborate outfits worth as much as $20,000 apiece. (AP Photo/Juan Karita)