The well-designed 1800+ levels will guide you to master all the country knowledge (flags, capital, maps and locations on the world map, and currencies) with ease & fun. Features: - Designed for flag and geography fans. - Effective and fun teaching and training method: learn and train first with ease and then challenge yourself with pressure. - You decide what to learn: choose from flags, capital cities, maps and locations on the world map, and currencies. - You decide which continent to focus