Mayan descendent Rosa Chuzco Velencia, 81, (L), and Mayan spiritual leader Juana Justa Yax Tale, from Guatemala, walk to a ceremony site to honor Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





People pray during a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan descendent Rosa Chuzco Velencia, 81, (L), and Mayan spiritual leader Juana Justa Yax Tale, from Guatemala, chat before a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan spiritual leader Juana Justa Yax Tale, (front R) from Guatemala, takes a selfie with her husband, Pablo Pedro Yax, after a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan spiritual leader Juana Justa Yax Tale, from Guatemala, (L), lights a fire before a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan spiritual leaders Juana Justa Yax Tale, (L), and her husband Pablo Pedro Yax, from Guatemala, lead a ceremony in honor of the Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan spiritual leader Juana Justa Yax Tale, from Guatemala, (L), puts flowers at a ceremonial site before a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





Mayan spiritual leaders Juana Justa Yax Tale, (R), and her husband Pablo Pedro Yax, from Guatemala, lead a ceremony in honor of Mayan ancestors in Madruga, Cuba, December 8, 2015. (Photo by Reuters/Stringer)





A cultural dance group waits to perform at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia December 8, 2015. Picture taken December 8, 2015. (Photo by Tiksa Negeri/Reuters)





Cultural dancers from Benishangul region performs at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia, December 9, 2015. (Photo by Tiksa Negeri/Reuters)





A cultural dance group waits to perform at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia, December 9, 2015. (Photo by Tiksa Negeri/Reuters)





A cultural dance group from Oromiya region waits to perform at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia, December 9, 2015. (Photo by Tiksa Negeri/Reuters)





A cultural dancer from Oromiya region waits to perform at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia, December 9, 2015. (Photo by Tiksa Negeri/Reuters)





Cultural dancers from Afar region performs at Gambela stadium during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia, December 9, 2015. (Photo by Tiksa Negeri/Reuters)





A group of cultural dancers perform along a street during Ethiopia's Nations and Nationalities Festival in Gambela town, in Ethiopia December 8, 2015. Picture taken December 8, 2015. (Photo by Tiksa Negeri/Reuters)