But red, white and blue aren't the only colors associated with the holiday. Why are some Juneteenth flags red, green and black? Some celebrations also use the red, green and black Pan-African flag ...

South Africa's tallest national flag is unfurled in all its flapping, snapping, cracking glory atop a 60-metre pole mounted in the centre of Gqeberha, or a kilometre-and-a-half from St George's Park.