Top image: Looking north from east of Tijuana, Mexico: The U.S. border fence cuts through mountains in the states of California in the U.S. and Baja California in Mexico. Image by © Louie Palu/ZUMA. Mexico, 2012.
Bottom image: A small rowboat used by a scrap smuggler is seen inside North Korea, beyond razor wire from the Chinese side of the border near Dandong, China. North Korean soldiers and workers were observed loading scrap metal into the boat before it crossed the Yalu river to the Chinese riverbank at an illegal crossing point. Image © Tomas van Houtryve/VII. China, 2013.