The Werratal is the origin of the river Werra wich leads into the Weser. Along the river Werra you find a lot of hiking and biking routes. The valley is very varied and a beautiful landscape.
The city of Göttingen is only 44 km away and worth a visit.
You find Kassel in the west 40 km away and in the east there is Mühlhausen only 50 km away.
So you have a lot to explore and historical buildings to visit.