Mexican President Enrique Pena Nieto, Canadian Prime Minister Justin Trudeau, and U.S. President Barack Obama shake hands (awkwardly) at the North American Leaders' Summit in Ottawa, Canada.
Jockey Francesco Caria rides his horse during practice in Siena, Italy.
Fishermen use fire to attract fish on a traditional "sulfuric fire fishing boat" in New Taipei City, Taiwan.
Cabins for tourists on the grasslands in Ulaanbaatar, Mongolia.
British horse guards take part in a memorial ceremony at the Franco-British National Memorial in Thiepval, France.
(REUTERS/Stephane de Sakutin/Pool)
A man pushes children through the flooded streets of Jiangxi Province, China.
Mobile homes devastated by a wildfire in South Lake, California.
(AP Photo/Jae C. Hong)
Competitors swim during the Ironman competition in Klagenfurt, Austria.
(Jan Hetfleisch/Getty Images for Ironman)
A woman mourns a friend killed in the Ataturk airport attacks in Istanbul, Turkey.
The first of Britain's new supersonic stealth strike fighters accompanied by two United States Marine Corps F-35B aircraft, arrive in Gloucestershire, England.
(Photo by Matt Cardy/Getty Images)
Russian cadets waltz during a graduation ceremony in Moscow.
(AP Photo/Ivan Sekretarev)
People enjoy a chair swing ride as the sun sets in Athens, Greece.
(AP Photo/Petros Giannakouris)**See last week's best photojournalism**