Rainbow as an example of light refraction. The rainbow is reaching over an area called Edge End Moor situated on the hills above Hebden Bridge in Calderdale. It contains farms and fields.
<a href="//commons.wikimedia.org/wiki/User:Sudzie" title="User:Sudzie">Sudzie</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>