People gather around a Christmas tree at Washington Square Park to sing carols on Christmas Eve in New York City , US. (Photo: VCG)

Families pose by a Christmas tree on Bondi Beach on December 25, 2018, in Sydney, Australia. December is one of the hottest months of the year across Australia, with Christmas Day traditionally involving a trip to the beach and celebrations outdoors. (Photo: VCG)

Families celebrate Christmas on Bondi Beach on December 25, 2018 in Sydney, Australia. (Photo: VCG)

Surf Life savers patrol Bondi Beach on December 25, 2018 in Sydney, Australia. (Photo: VCG)

People light candles on Christmas Eve at Sacred Heart Cathedral Church, Gole Dak Khana on December 24, 2018, in New Delhi, India. (Photo: VCG)

People light candles on Christmas Eve at Sacred Heart Cathedral Church, Gole Dak Khana on December 24, 2018, in New Delhi, India. (Photo: VCG)

Sheikha Behbehani distributes sweets during Christmas mass at the National Evangelical Church in Kuwait City on December 24, 2018. People dressed as Father Frost and as the Snow Maiden take part in a march on Christmas Eve through the center of Minsk, Belarus, on December 24, 2018. (Photo: VCG)

People dressed as Father Frost and as the Snow Maiden take part in a march on Christmas Eve through the center of Minsk, Belarus, on December 24, 2018. (Photo: VCG)