Currently, the family room - early in the morning, before anybody else is up.
When I was a kid, I had a tree I used to like to climb and sit in.
And in college, there was this walking trail, by a small stream. It had a particular spot where it dipped down a bit, and there was log bench. You couldn't see a single sign of civilization, not even a telephone wire (even though it was actually very accessible) and it was just so peaceful.