(L-R) Marisa Berenson, Caroline de Maigret, Nicki Minaj and Lou Doillon attend the Haider Ackermann show as part of the Paris Fashion Week Womenswear Fall/Winter 2017/2018 on March 4, 2017 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)

Students training to be flight attendants hold books on their heads, chopsticks in their mouths, and papers in between their knees, as they take part in a standing posture practice at a vocational school in Shijiazhuang, Hebei province, China May 4, 2017. (Photo by Reuters/Stringer)

A robot is seen on Mount Etna, Italy on July 4, 2017. Mount Etna, in Sicily, is a test bed for the approximately three-foot high, four-wheeled machine ahead of a future mission to the moon. It is being conducted by the German Aerospace Centre, the agency which runs Germany's space programme. (Photo by Antonio Parrinello/Reuters)

A model presents a creation by Singapore-born designer Andrew GN as part of his Fall/Winter 2016/2017 women's ready-to-wear collection show in Paris, France, March 4, 2016. (Photo by Benoit Tessier/Reuters)

UFC women's bantamweight champion Holly Holm and Miesha Tate face off during the UFC 196 weigh ins at the MGM Grand Garden Arena in Las Vegas on Friday, March 4, 2016. (Photo by L.E. Baskow/Las Vegas Sun via AP Photo)

A man looks at a mural painted on the walls of houses in Zaraeeb, created by French-Tunisian artist El Seed, in the shanty area known also as Zabaleen or “Garbage City” on the Mokattam Hills in eastern Cairo, Egypt, April 4, 2016. (Photo by Amr Abdallah Dalsh/Reuters)

Alain Robert of France, who is known as "Spiderman", climbs the Habana Libre hotel in Havana February 4, 2013. Robert, who scales buildings all over the world without safety equipment, successfully climbed the hotel which is 126 metres (413 feet) high. (Photo by Stringer/Reuters)

A woman and her two dogs named Yoru (R) and Hinaka bath in the water at Takeno Beach on August 4, 2013 in Toyooka, Japan. This beach is open for dogs and their owners every summer between the months of June and September. (Photo by Buddhika Weerasinghe)