Two brave contestants take part in the World Gravy Wrestling Championships at the Rose 'n Bowl in Stacksteads, Lancashire, England on August 27 2018. Contestants must wrestle in the gravy for 2 minutes, points are scored for fancy dress, comedy effect, entertainment and wrestling ability. The event is held to raise funds for the East Lancashire Hospice and competitors nominated charities. (Photo by The Mercury Press)

In this photo taken on Thursday, September 6, 2018, a women releases an arrow during an archery competition during the Third Nomad Games, in Cholpon-Ata, 250 kilometers (156 miles) of Bishkek, Kyrgyzstan. The Central Asian nation of Kyrgyzstan held its biennial Nomad Games to promote and celebrate traditional sports of nomadic people. The week-long competition, which is held in a gorge near the picturesque Lake Issyk-Kul, feature traditional sports of nomad peoples such as horseback wrestling and goat polo. (Photo by Vladimir Voronin/AP Photo)

Children take part in the “Carnavalito” children's parade during the Blacks and Whites Carnival in Pasto, Colombia, on January 2, 2018. (Photo by Juan Barreto/AFP Photo)

A woman dressed up for Halloween travels on a Metro train in São Paulo, Brazil on October 30, 2017. (Photo by Cris Faga/Rex Features/Shutterstock)

The Aurora Borealis (Northern Lights) lights up the sky near the village of Pallas (Muonio region) of Lapland, Finland September 8, 2017. (Photo by Alexander Kuznetsov/Reuters/All About Lapland)

A reveller takes part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)

A member of the “Bloco Ultima Hora” group gets off a boat during Carnival of the Waters, where costumed and colorful boats navigate the river Tentem, around the islands near the city of Cameta, Brazil on February 8, 2018. (Photo by Ueslei Marcelino/Reuters)

Student Rabindra Bharati University celebrates the Holi festival, Color Festival on February 26, 2018 in Kolkata, India. Holi, the popular Hindu spring festival of colours is observed in India at the end of the winter season on the last full moon of the lunar month, and will be celebrated on March 1 this year. (Photo by Debajyoti Chakraborty/NurPhoto via Getty Images)