1: A man covered in face paint waits to see U.S. Democratic presidential candidate Bernie Sanders during a campaign event in Vallejo, California, May 18, 2016.

2: A Buddhist monk cleans the statue of Lord Buddha ahead of his birth anniversary in a monastery in Bhopal, India.

3: Nigeria President Muhammadu Buhari, second right, receives Amina Ali, the rescued Chibok school girl, at the Presidential palace in Abuja. The first Chibok teenager to escape from Boko Haram’s Sambisa Forest stronghold was flown to Abuja and met with the president, even as her freedom adds pressure on the government to do more to rescue 218 other missing girls.

4: Riot police officers detain a man during a demonstration against a labor law bill in Paris, France.

5: A two-kilometer long Neapolitan pizza made to break a Guinness World Record for the longest pizza ever made, is seen stretching along the city waterfront, in Naples, Italy, May 18, 2016.

6: Board Director of Product Division for SoftBank Robotics Kazutaka Hasumi (R) performs with SoftBank’s emotion-reading robot Pepper during a demonstration to show its compatibility with Google’s Android software, at the company’s headquarters in Tokyo, Japan.

7: A Belgian F16 fighter jet flies over during a visit of Belgian King Philippe and Jordan’s King Abdullah II at Florennes Military Airbase, in Florennes, Belgium, May 18, 2016.

8: Supporters of Trinamool Congress (TMC) celebrate after learning the initial poll results of the West Bengal Assembly elections, in Kolkata, India.

9: Residential buildings are seen after rain in Huangshan, Anhui province, China.