A woman gets a pedicure in Port-au-Prince, Haiti, on October 13, 2017. (Photo by Andres Martinez Casares/AP Photo)

Dancers at the Windmill Theatre in London, England practice a routine wearing gas masks and hard-hats with their costumes, 1940. (Photo by Hulton Archive/Getty Images)

Young girls attend a training session in MGFSO Olympic reserve school in Moscow on May 30, 2016. (Photo by Kirill Kudryavtsev/AFP Photo)

Participants run through coloured powder during the YARKOcross colour run race in Almaty, Kazakhstan, June 5, 2016. (Photo by Shamil Zhumatov/Reuters)

Musafir, a pet monkey, eats sweets on a pavement in Kolkata, India, June 9, 2016. (Photo by Rupak De Chowdhuri/Reuters)

Children play amid icebergs on the beach in Nuuk, Greenland, June 5, 2016. (Photo by Alister Doyle/Reuters)

Flames from the Erskine Fire engulf a trailer near Weldon, California, U.S. June 24, 2016. (Photo by Noah Berger/Reuters)

People commute during a heavy rain shower in Chandigarh, India, June 22, 2016. (Photo by Ajay Verma/Reuters)