I received this card as an official from Germany some time ago. Even though it doesn't show anything very unusual and I actually couldn't tell, which country it is just looking at the card, I like it because of it's colors and contrast (I'm not sure if you can see it here, especially because my scanner isn't a very good one). According to the information on the back side of the postcard, it's a forst near Rechtenbach in Bavaria.
I used to spend a lot of time in forests during the summer holidays before. My grandparents live in a region with many forests, lakes and hills, but which is a very famous tourist destination, which makes it a very nice and peaceful place to spend holidays. I especially enjoyed going on bike trips and picking the mushrooms :) Now I don't spend my holidays there anymore, but if I have an opportunity to go there for a few days, I always go for a walk to the forest. It really calms me down.