The only flag that does not have four-sided edges is the flag of Nepal. Unlike most national flags that feature rectangular or square shapes, Nepal's flag consists of two stacked triangles. Each triangle symbolizes different aspects of the nation's history and culture, with the blue representing peace and the red symbolizing courage. A white moon and sun are depicted within the flag, embodying Nepalese spirits and values. The unique shape of the flag is a significant identifier, making it the only non-rectangular national flag in use today, representing Nepal's distinct cultural heritage and identity.