There is a photo contest by 
Every week on Sunday a new round starts and the motto is announced.
To participate, you have to publish a post according to the theme, then leave a comment and a link in the contestpost and use the tag #pobphotocontest.
There are POB tokens to be won, which will be distributed as rewards for the published post.
Also 
So it's worth joining in there.
This week's theme is Nature and here is my contribution.
When we were in Luxembourg, we took a hiking trail through the forest.
I always imagined Luxembourg to be a big financial center.
The truth is, however, that only Luxembourg City is a financial center. We saw almost nothing but nature on the outside.
It was almost like New Zealand.