Thanks to a post from Heidi Egerman I found the site 52Frames. It gives you a new photo challenge every week. Kinda like the weekly theme here on the forum. Except that you are only allowed to enter one photo per week. That might become challenging for me, as I often have trouble picking just one 😄.
Anyway, it looks like a lot of fun so I subscribed :). This is the first challenge I participated in: Leading lines.