AP
In this photo taken on Saturday, Dec. 30, 2017, by an individual not employed by the Associated Press and obtained by the AP outside Iran, university students run away from stones thrown by police during an anti-government protest inside Tehran University, in Tehran, Iran. Demonstrations, the largest seen in Iran since its disputed 2009 presidential election, have brought six days of unrest across the country and resulted in over 20 deaths. (AP Photo)
- STR
Visitors use binoculars to see the North side from the Imjingak Pavilion in Paju, South Korea, Wednesday, Jan. 3, 2018. North Korean leader Kim Jong Un reopened a key cross-border communication channel with South Korea for the first time in nearly two years Wednesday as the rivals explored the possibility of sitting down and talking after months of acrimony and fears of war. (AP Photo/Lee Jin-man)
- Lee Jin-man
Visitors take photographs at the brink of the Horseshoe Falls in Niagara Falls, Ont., Tuesday, Jan. 2, 2018. Almost every year frigid temperatures transform the falls into an icy winter wonderland when the mist is blown back, freezing on the landscape. (Aaron Lynett/The Canadian Press via AP)
- Aaron Lynett