As a frequent traveler, I encounter many wondrous sights the nation (and nature) have to offer.  

Recently, driving along S-22 leaving the Ocotillo Wells SVRA in southern California, I encountered this rainbow in a cloud.  

It was close to 5 pm and the sun was beginning to set over the distant mountains.  There was enough moisture for the setting sun to create a rainbow effect within the thin patch of cloud.

Slow down, relax and enjoy the drive...