Living Nativity Scenes performed at Postojna Caves in Slovenia

A Christmas tree is seen at a special premiere of the Living Nativity Scenes in Postojna Cave near Postojna town, Slovenia, on Dec. 21, 2017. Living Nativity Scenes are performed at various stations along the Postojna Caves in the five-kilometer journey, with a total of 16 biblical scenes to recreate the whole picture of Christ's birth. (Xinhua/Matic Stojs)