Well, mine is not very aesthetic or anything but it is very dear to me. There is a little spot in my university campus and it's pretty far away from all the other buildings. It's a beautiful place with lots of trees and laid back chars under them and there is a little cafeteria on one side so you can order some snacks too. 

The best thing about that place is that nobody goes to that place that often. It's very quite and relaxing there. whenever I'm fed with all those hour long lectures and lab sessions I go to that place and just sit there for hours and just think about nothing and worry about nothing. No one is there to disturb you and I just love it.