While students try to get five countries in a row on one of eight GeoBingo boards, the caller draws from a pack of 50 country cards representing the world’s most populous nations. These cards show each country’s capital, land area, population, and geographic location. The main area of each card maps the location of the country, with the country’s name spelled out at the top of the card. Putting the names at the top makes them easy to hide under the caller’s thumb, suggesting variations to the game. Eight players.