A person dressed as a polar bear leads participants into the water during the Coney Island Polar Bear Club’s annual New Year’s Day swim at Coney Island in the Brooklyn borough of New York. Reuters archive.

Photo by Andrew Kelly

Children warm themselves in a sauna before going outside and pouring cold water on themselves under the watch of fitness coach Oksana Kabotko (not pictured) at a local kindergarten in subzero temperatures, in Krasnoyarsk, Siberia, Russia. Reuters archive.

Photo by Ilya Naymushin

A dog enjoys a sauna in a pet store in Hangzhou, China. Reuters archive.

Photo by Reuters photographer

Men take a dip in a cold bath at a traditional steam bath in Cairo, Egypt. Reuters archive.

Photo by Asmaa Waguih

Migrants, mostly from Syria, sleep in a mosque at the main bus station in Istanbul, Turkey. Reuters archive.

Photo by Huseyin Aldemir

A two-month-old white bengal tiger cub sleeps at Gyor Zoo in Gyor, west of Budapest. Reuters archive.

Photo by Bernadett Szabo

People walk near a fountain at Castille Place in Valletta, Malta, at sunset. Reuters archive.

Photo by Darrin Zammit

A child practises on a trampoline during a training session at a circus school in Havana,. Reuters archive.

Photo by Alexandre Meneghini

A flock of starlings fly over an agricultural field near the southern Israeli city of Netivot. Reuters archive.

Photo by Amir Cohen

A teddy bear left by refugees is seen on barbed wire in front of a newly erected fence guarder by Macedonian army at the Greek-Macedonian border, near the village of Idomeni, Greece. Reuters archive.

Photo by Yannis Behrakis

A man sleeps during the Midburn festival at southern Israel . Reuters archive.

Photo by Amir Cohen

Tourists watch the sun rise as Mount Bromo erupts in the background near Ngadisari, Probolinggo, East Java, Indonesia. Reuters archive.

Photo by Darren Whiteside

Supporters of China’s President Xi Jinping carry a dragon as they wait on the Mall for him to pass during his ceremonial welcome, in London, Britain. Reuters archive.

Photo by Peter Nicholls

A guide (L) serves breakfast to guests above the cabine at the Skylodge Adventure Suites in the Sacred Valley in Cuzco, Peru. Reuters archive.

Photo by Pilar Olivares

A worker helps lift a dragons head made of Lego into position as construction continues in North America’s first ever Lego Hotel being built at Legoland in Carlsbad, California, USA. Reuters archive.

Photo by Mike Blake