Actors perform in a biblical scene of the census during the world's largest live Nativity scene in a cave, staged in the world-famous Postojna Cave in Slovenia, Dec. 25, 2015. (Xinhua/Luka Dakskobler)

Actors perform as shepherds in a biblical scene during the world's largest live Nativity scene in a cave, staged in the world-famous Postojna Cave in Slovenia, Dec. 25, 2015. (Xinhua/Luka Dakskobler)

Actors perform in a biblical scene during the world's largest live Nativity scene in a cave, staged in the world-famous Postojna Cave in Slovenia, Dec. 25, 2015. (Xinhua/Luka Dakskobler)

Actors perform as the Three Wise Men in a biblical scene during the world's largest live Nativity scene in a cave, staged in the world-famous Postojna Cave in Slovenia, Dec. 25, 2015. (Xinhua/Luka Dakskobler)

Actors perform as Joseph and Mary during the world's largest live Nativity scene in a cave, staged in the world-famous Postojna Cave in Slovenia, Dec. 25, 2015. (Xinhua/Luka Dakskobler)