Since 2010, tourism has been steadily growing on a worldwide level – despite several terror attacks and political turmoil. According to UNWTO, even in 2015 the number of tourists that visited foreign countries increased by 4.4 percent to a new level of 1.2 billion. What makes this industry grow, what makes it stagnate? Tourism-Review.com brings you the top 5 challenges of tourism industry in the coming months.