A man wearing a Santa outfit paddleboards in Sydney Harbour on Christmas Day in Australia. James D. Morgan/Getty Images

DeAngelo Williams of the Pittsburgh Steelers arrives at Heinz Field in Pittsburgh dressed as an elf before the game between the Steelers and the Baltimore Ravens on December 25. Justin Berl/Getty Images

Participants dressed as dinosaurs and in festive clothing join in the Christmas Day 'Fancy Dress' swim in Dorset, England, to raise money for charity. Mark Thomas/i-Images/ZUMA Wire

Pope Francis kisses a figure of baby Jesus during a Midnight Mass of Christmas in Saint Peter's Basilica at the Vatican, on December 25. CLAUDIO PERI/EPA

Members of the volunteer Water Skiing Christmas Show, dressed as Santa Claus and reindeer, water-ski on the Potomac River, in Alexandria, Virginia,on December 24. PAUL J. RICHARDS/AFP/Getty Images

A worshiper lights a candle ahead of a traditional Christmas Eve Mass on December 24, in Vladimir, Russia. Smirnov Vladimir/TASS/ZUMA Press

Visitors take pictures of Christmas trees illuminated by LED lights on Christmas Eve in Shah Alam, outside Kuala Lumpur, Malaysia. MOHD RASFAN/AFP/Getty Images

Chloe, a Lebanese Christian teenager dressed as Santa Claus, hands a gift to a Syrian refugee on December 24, during a gift distribution organized by the Maronite congregation "Mission de Vie" in a slum in the town of Dbayeh, north of Beirut. PATRICK BAZ/AFP/Getty Images

U.S. Army personnel light candles during Christmas Eve Mass in the Assyrian Orthodox church of Mart Shmoni, in Bartella, Iraq. Cengiz Yar/AP

An Indian schoolboy wearing a Santa Claus outfit is surrounded by classmates as he gives out sweets during Christmas celebrations at a school in Amritsar on Christmas Eve. NARINDER NANU/AFP/Getty Images

Two nuns are among the spectators taking part in the Christmas Eve celebrations on December 24, outside the Church of the Nativity, revered as the site of Jesus Christ's birth, in the biblical West Bank town of Bethlehem. HAZEM BADER/AFP/Getty Images

Babies attend a Christmas party held by a baby swimming club in Beijing on December 24. Zhang Yuwei/Xinhua/ZUMA Wire

Couples take selfies in front of holiday decorations at shopping area on December 24, in Hong Kong. Lam Yik Fei/Getty Images

Christians in Indonesia hold candles at church services in Jakarta on December 24. Zulkarnain/Xinhua/ZUMA Wire

A boy wearing a Santa hat skis along a street near Montreal, Canada on December 24. Graham Hughes/AP