U.S. Army helicopters providing support for U.S. ground troops fly into a staging area fifty miles northeast of Saigon, Vietnam, August 28, 1966. Helicopter fuel is stored in the large rubber tanks, foreground. (Photo by Henri Huet/AP Photo)

A hot air balloon floats over farm fields south of Washington, Ill., as the sun slips behind clouds on the autumn afternoon of Wednesday, September 24, 2014. (Photo by Ron Johnson/AP Photo/Peoria Journal Star)

A juvenile leopard cat, seized by authorities during an anti-smuggling operation, is seen past suspected smugglers during a press conference announcing the seizure of trafficked exotic animals in Surabaya on March 27, 2019. Indonesian authorities said March 27 they had seized five komodo dragons and dozens of other animals being sold on Facebook, as the country battles to clamp down on the illegal wildlife trade. (Photo by Juni Kriswanto/AFP Photo)

Jerome Flynn, who played Bronn on “Game of Thrones“, posed in a cage on London's Oxford Street on November 26, 2019 alongside the campaign group Farms Not Factories to raise awareness that most supermarkets and high street food chains are still sourcing their pork almost entirely from factory farms. Says Jerome "Factory Farming is one of the most horrific examples of how far we have strayed from our hearts in the relentless drive for profit and so called progress”. (Photo by Jeff Moore/Splash News and Pictures)

Competitors climb in front of the Matterhorn mountain at the start of the 21st Glacier Patrol race in Stafel outside the ski resort of Zermatt, Switzerland, 18 April 2018. The Glacier Patrol (Patrouille des Glaciers in French), organized by the Swiss Army, takes place from April 17 to 21. Highly-experienced hiker-skiers trek for over 53km (3994m ascent and 4090m descent) along the Haute Route along the Swiss-Italian border from Zermatt to Verbier. (Photo by Valentin Flauraud/EPA/EFE)

Girls take part in the traditional seasonal Christmas run along the streets of Vilnius, Lithuania, Sunday, December 17, 2017. The festive run attracts many hundreds of people to the capital dressed as Santa Clause to take part in the sporting event. (Photo by Mindaugas Kulbis/AP Photo)

Parade participants during the traditional “Masopust Carnival” festival on February 13, 2018 in Roztoky near Prague, Czech Republic. Known as Masopust (literally, “giving up meat”), the festival was traditionally the last chance to eat and drink in excess before the austerity of Lent. (Photo by Margot Buff/RFE/RL)