Brittany Ching dressed as a character from the sci-film “Avatar” at the annual Denver Comic Con at the Colorado Convention Center on June 16, 2016. (Photo by AndyCross/The Denver Post)

Lightning strikes during a storm over the Ionian Sea in Calabria, Italy on June 27, 2016. (Photo by Alfonso Di Vincenzo/Pacific Press/Rex Features)

A priest of the ancient Samaritan community, wrapped in a prayer shawl, holds up a Tora scroll as worshippers pray during the holy day of Shavuot on Mount Gerizim on June 12, 2011 in Nablus, West Bank. Shavuot is a Jewish religious holiday and commemorates the anniversary of the day God is said to have given the Torah to the Israelites. (Photo by Uriel Sinai/Getty Images)

A zoo employee feeds a 3-week-old Eurasian eagle owl at the Royev Ruchey zoo on the suburbs of the Siberian city of Krasnoyarsk, Russia June 7, 2016. (Photo by Ilya Naymushin/Reuters)

Carlos Cure holds packets of corn flour made in Colombia as he poses for a picture at a stall that sells food and staple items at a market in La Fria, Venezuela, June 2, 2016. (Photo by Carlos Garcia Rawlins/Reuters)

Participants dressed in ancient Japanese costumes take part in a parade at the Imperial Palace during the Sanno Festival in Tokyo, Japan June 10, 2016. (Photo by Toru Hanai/Reuters)

Members of the “Familia Gladiatoria Carnuntina” fight in the historic amphitheatre during the Roman Festival at the archeological site of Carnuntum in Petronell, Austria, June 11, 2016. (Photo by Leonhard Foeger/Reuters)

A bus goes through a flooded area in Jiujiang, Jiangxi Province, China, June 19, 2016. A week of torrential rain in southern China has killed dozens of people and forced relocation of tens of thousands of residents, media reported. (Photo by Reuters/China Daily)