People re-enact the nativity of Jesus in the Posada Sin Fronteras or Posada Without Borders at the Mexican-US border on 16 December 2017, as part of the Christmas celebrations in Playas de Tijuana, north-western Mexico. The Posadas is a Catholic ritual that re-enacts Mary and Joseph’s journey from Nazareth to Bethlehem in search of a birthplace for the Christ Child.

Photograph: Guillermo Arias/AFP/Getty Images