USA, — Each June 14, Americans honor one of the nation's most enduring symbols through Flag Day observances that trace their roots to a pivotal moment in revolutionary history. The holiday stems from ...

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.

Even if the flags have remained standing when crews rocketed off the moon, it is almost certain that they are not in the same condition as when they were first deployed on the lunar surface. When you ...