A member of the “Castellers Minyons de Terrassa” adjusts her belt before forming a human tower or ÒcastellÓ during the festival of the patron saint of Barcelona “The Virgin of Mercy” at Sant Jaume square in Barcelona, Spain, September 20, 2015. The formation of human towers is a tradition in Catalonia dating back to the 18th century. (Photo by Susana Vera/Reuters)

Kyrgyz men on horseback compete during their traditional game of “Oodarysh” during the celebrations of the 90th anniversary formation of the Chui region in the village of Kuntu some 20 kms from Bishkek on May 27, 2016. (Photo by Vyacheslav Oseledko/AFP Photo)

Alexo Carmona, 2, looks at Coco, a two-year-old pony, in downtown Havana, in this March 6, 2015 file photo. Nearly a quarter of a million people follow the Reuters Instagram account – and it's still growing fast. To mark the mid-point of 2015, Reuters has compiled the twenty most-liked pictures so far. This picture was 20th most popular. (Photo by Alexandre Meneghini/Reuters)

In this photo provided by Mickey Nuttall, members of an international team of skydivers join hands, flying head-down to build their world record skydiving formation, Friday, July 31, 2015, over Ottawa, Ill. (Photo by Jason Peters via AP Photo)

A Russian Su-35S combat aircraft and a Tu-95ms strategic bomber fly in formation above a church during a rehearsal for the flypast, which is part of a military parade marking the anniversary of the victory over Nazi Germany in World War Two, in Moscow, Russia on May 4, 2022. (Photo by Maxim Shemetov/Reuters)

Servicewomen march in formation during a Victory Day military parade marking the 74th anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II, in Moscow's Red Square, Russia on May 9, 2019. (Photo by Valery Sharifulin/TASS)

Members of the South Korean Confederation of Trade Unions (KCTU) perform with traditional Korean masks during a rally against the government's Labor Policy in Seoul, South Korea, 06 July 2023. South Korean Confederation of Trade Unions (KCTU) begen a general strike on a national scale from 03 July against the South Korean government's labor policy and against Japan's disposal of treated radioactive water from the Fukushima nuclear power plant into the sea. (Photo by Jeon Heon-Kyun/EPA)

Occupy Denver protesters dance on an American flag on November 5, 2011 in Denver, Colorado. Hundreds of the demonstrators marched through downtown Denver, denouncing the U.S. Federal Reserve and urging customers to close their accounts with large banks and deposit their funds into local credit unions. (Photo by John Moore/Getty Images)