How many times have you found a big observatory out in the forest ? When I and my girlfriend was out in the forest and looking for Sweden's ancient history we did not only found one observatory, we found three !
It's one of the observatories that was in the article about old Swedish observatories that I translated to english.
My photos and some complement with information from this event:
http://www.astrofriend.eu/astronomy/...servatory.html
/Lars