https://www.bbc.co.uk/news/uk-46434720

....along with 'three rainbows'?

...and apparently you can have 'upside down' ones, too :

https://www.bbc.co.uk/news/magazine-35343629

 

https://www.bbc.co.uk/news/in-pictures-40669079

 

and there's more....go figure: