Landolfshausen is in the Landkreis Göttingen.
14 km from Duderstadt

15 km from Göttingen

76 km from Kassel

Landolfshausen is the gateway to the Harz

https://en.harzinfo.de/things-to-see-do.html

30 km from Bad Lauterberg  

50 km from Braunlage 

80 km Goslar (The Old Town of Goslar and the Mines of Rammelsberg are UNESCO World Heritage Sites. Each year Goslar awards the Kaiserring to an international artist, called the "Nobel Prize" of the art world)