Editor’s Note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter ... Vexillogical Association (NAVA), says that the flag’s history and shape make it a common conversation ...

Even in modern history the Welsh flag has gone through many upgrades ... year that helped to unravel the changes taking place in world around us.

(CNN) — It’s a go-to question at bar trivia: what is the only national flag in the world that isn’t rectangular ... It has a long and deep history in South Asia and in the Indian ...

Flying a flag at half-mast following the death of the head of state is a common practice across the world. In the UK, such tributes honour rulers of allied nations on the monarch's command.