A person starts the game by naming a continent, country, state, town, street, or body of water that begins with the letter A. The next person must give a geographical location that begins with the letter that the former word ends with. Eg. "Atlantic Ocean"; the next person might say, "New York"; and the next person might say, "Kansas", etc.
This is a wonderful game to play while commuting or on a long trip. Older children might track or look up places on a map.