“Thunderstruck”. Summer stom. A super cell formed off the coast of New Zealand, intensified and swept across Christchurch and North Canterbury, February 23, 2014. Photo location: Christchurch, New Zealand. (Photo and caption by David Hardy/National Geographic Photo Contest)

Riot Police form a cordon as a Police car burns on the opening day of the European Central Bank (ECB) in Frankfurt am Main, western Germany, on March 18, 2015. Supporters of the so-called Blockupy alliance consisting of social movements, activists, workers, trade unions and parties are expected to stage large protests against austerity and the authority of the European Central Bank when the bank's new headquarters officially will be on March 18, 2015. (Photo by Odd Andersen/AFP Photo)

A model wears a creation for Maison Margiela's Haute Couture Spring-Summer 2017 fashion collection presented in Paris, Wednesday, January 25, 2017. (Photo by Francois Mori/AP Photo)

A vendor sells chili peppers at his stall at a market in Bangkok, Thailand March 31, 2016. (Photo by Jorge Silva/Reuters)

A man walks past an overturned car in the street that was damaged in flooding caused by torrential rain in Cannes, France, October 4, 2015. (Photo by Eric Gaillard/Reuters)

People play "Palin", a traditional ritual and ancestral Mapuche game played with curved sticks called "Chuecas" and a wooden ball, during a meet on Dia de la Raza (Day of the Races), also known as Columbus Day in Vina del Mar, Chile October 11, 2015. (Photo by Rodrigo Garrido/Reuters)

A Myanmar Shiite Muslim devotee runs barefoot over a bed of burning coals as he takes part in a Muharram procession ahead of the Islamic holiday Ashura, in Yangon, Myanmar, October 22, 2015. Muslims across the world are observing Moharram, the first month of Islamic calender, the climax of Moharram is the Ashura festival commemorating the martyrdom of Imam Hussein, a grandson of the Prophet Mohammed in the Iraqi city of Karbala in the seventh century. (Lynn Bo Bo/EPA)

Performers re-enact the 1947 massacre of Taiwanese intellectuals by mainland China's Nationalists troops during the inauguration ceremony of Taiwan's President Tsai Ing-wen in Taipei, Taiwan, Friday, May 20, 2016. Taiwan inaugurated Tsai as its first female president on Friday, returning the pro-independence Democratic Progressive Party to power amid new concerns over increasingly fractious relations with Beijing and a flagging economy. (Photo by Chiang Ying-ying/AP Photo)