We truly never know what we'll stumble across in our travels. And while it's hardly impossible to find something unusual on your normal route, your chances of making a weird discovery get a lot higher the further afield you go.
And since exploring fairly remote areas is a pretty good way of avoiding other people at a time when it's the most prudent to do that, it's perhaps not surprising that we never seem to run out of photos people have taken after finding something nobody else knows about.
Thanks to their efforts, we can share in the strange sights they've witnessed without having to do all their walking.