Popsugar Culture Facebook Facebook Year in Review 2015 Can You Guess the 10 Most Popular Topics on Facebook in 2015? December 15, 2015 by Ann-Marie Alcántara View On One Page Photo 3 of 12 ADVERTISEMENT () Start Slideshow This drone footage filmed near the Croatian border shows thousands of migrants and refugees crossing through farmland on...Posted by Channel 4 News on Monday, October 26, 2015 Share This Link Copy ← Use Arrow Keys → 3 3. Syrian Civil War and Refugee Crisis Previous Next Start Slideshow