Here is a complete list of world expos and world's fair locations and dates. World's fairs and expos give the host city an opportunity to share their culture and traditions with the rest of the world. As a result, host cities are often remembered for a long time after and see a boost in international tourism and interest from other countries. It's always an honor to hold a world expo in your city and many cities around the world vie for this honor every year.Where did the World's Fair take place? Do you know all of the World's Fair locations? If so, then congratulations, you're a walking encylopedia. If not, then this list will be of tremendous use for you.