Here’s a list of points of interest from the area, that may be attractive for your “non-quilting spouse”:

Railway station designed by Friedensreich Hundertwasserbahnhof in Uelzen   http://www.hundertwasserbahnhof.de

Museum village in Hösseringen   http://www.museumsdorf-hoesseringen.de/Home.html

Mill museum in Gifhorn   http://www.muehlenmuseum.de

Tank museum in Munster   http://daspanzermuseum.de

Autostadt Wolfsburg https://www.autostadt.de

……. more to follow ……