An animatronic polar bear visits the London Underground on January 23, 2015, to mark the launch of Fortitude, Sky Atlantic&Otilde's new drama starring Stanley Tucci, Michael Gambon and Christopher Ecclestone, which premieres on Thursday 29th January at 9pm. A team of 19 Hollywood prop specialists spent six weeks designing and building the realistic replica animal with six to eight people working on the costume at any one time, using over 60 different materials. (Photo by David Parry/PA Wire)

A model presents a creation during the pushBUTTON catwalk show at London Fashion Week Women's A/W19 in London, Britain February 19, 2019. (Photo by Henry Nicholls/Reuters)

Revellers kiss under a rainbow flag during the Gay Pride parade along Paulista Avenue in Sao Paulo, Brazil on June 3, 2018. (Photo by Nacho Doce/Reuters)

A boy shouts after catching a trout during a trout catching contest in Hwacheon, South Korea, Saturday, January 6, 2018. The contest is part of an annual ice festival which draws over 1,000,000 visitors every year. (Photo by Ahn Young-joon/AP Photo)

Passengers wear no trousers as they ride the London Underground in London, Britain, 07 January 2018. The No Pants Subway Ride is an global annual event where people take the public transport while they are not wearing trousers to surprise other passengers. This event takes place on the first Sunday of every year in the world's major cities. (Photo by Tolga Akmen/EPA/EFE/Rex Features/Shutterstock)

A competitor reacts ahead of Tough Guy Mudathon event in Perton, Britain, 04 February 2018. The original event which started in 1987 raises money for charity and challenges thousands of international competitors with a cross-country run followed by an assault course consisting of 20 obstacles including water, fire and tunnels. (Photo by Nigel Roddis/EPA/EFE)

Models pose alongside the Kia SP SUV Concept car after its launch at India Auto Show 2018 in Greater Noida, February 7, 2018. The biennial automobile exhibition opens to public Friday and runs till Feb. 14. (Photo by Saumya Khandelwal/Reuters)

Models present creations from the Versace Autumn/Winter 2018 women collection during Milan Fashion Week in Milan, Italy February 23, 2018. (Photo by Alessandro Garofalo/Reuters)