"This year’s theme is a celebration of tourism’s role in linking together the cultures of the world through travel. With millions of people travelling the world each year, never before have so many people been to so many places, nor been so exposed to other cultures. This interaction between individuals and communities, and their diverse cultures, leads to tolerance, respect and mutual understanding - the building blocks for a more peaceful world."

(Source: http://wtd.unwto.org/en)