Riddagshausen is a suburb to the east of Braunschweig. The nature conservation area there invites visitors to go walking through forests and meadows across a 526-hectare area and discover the flora and fauna. I really enjoyed the quiet and cozy vibes in the area. 
The Riddagshausen Abbey Church was founded by Cistercian monks, built between 1216 and 1275 and is one of the oldest Gothic buildings in Germany.