An International Exposition, often referred to as an Expo, is a large-scale public exhibition that showcases the achievements of nations. These events typically focus on a specific theme, such as technology, culture, or sustainability, and feature pavilions from various countries. Expos provide a platform for nations to present their innovations, share ideas, and promote cultural exchange. Expos are organized by the Bureau International des Expositions (BIE), which sets the rules and standards for these events. They occur every few years in different locations around the world, attracting millions of visitors. Notable past Expos include the 1967 Montreal Expo and the 2010 Shanghai Expo.