I recently read an article about how spending time in nature makes people happy (here's not the article I read, but something else on the topic). Even just 5 minutes gives a boost, and hours in the woods has measurable benefits. We spent about 24 hours at the cabin this weekend.
Weeds can be pretty too.
We planted the tree that's right in the center, about 10 years ago. It's a crabapple.