The World’s Fair, Universal Exposition, or just “Expo”, is “encompass universal themes that affect the full gamut of human experience, and international and corporate participants are required to adhere to the theme in their representations” (from Wikipedia).
The next edition will take place in 2015 in Milan, Italy (website). The theme is Feeding the Planet, Energy for Life.
Expo 2015 will be an extraordinary universal event displaying tradition, creativity and innovation in the business of food. It will bring together many themes that have already been handled by this event in the past, and set them out anew in light of new global possibilities whose common core is the idea that everyone on the planet should have access to food that is healthy, safe and sufficient. [Source: official website]
The organizers have made a contest to choose the official logo of the event and the result will come of between two finalists. The voting takes place online only and you have time until May 22nd to cast your vote. You just have to pick below which of the two logos represented you prefer.