Costa Rican President Luis Guillermo Solis visits in Korea
Costa Rican President Luis Guillermo Solis (C) signs a guestbook as South Korea's President Park Geun-Hye (L) and Costa Rican first lady Mercedes Pena (R) look after his arrival at the presidential house in Seoul, South Korea, 12 October 2016. REUTERS/Jeon Heon-Kyun/Pool