The Olympic rings are among the most recognizable logo in the world. But what do the five rings mean? You might be surprised ...

Almost every flag in the extensive collection of world flags is recognizable as rectangular. But among all the nations, there are two exceptions—nations with perfect squares for their official flags.

London (CNN) — In the United States, the Stars and Stripes are everywhere: on porches, lawns and pickup trucks. The national flag is part of the scenery, almost invisible in its ubiquity. In England, ...