World geography, world cultures?a world students can understand Exploring Our World: Western Hemisphere, Europe, and Russia is a middle school program co-authored by National Geographic. This program introduces students to an enriched view of the interrelationships of geography, history, economics, government, citizenship, and current events?in one compelling package. A strong geographic thread is interwoven with history, government, and current events to analyze different regions of the world and the issues they face. Suitable for a world geography or world cultures class, this program is also available as a full survey and Eastern Hemisphere. .