Considering the Arcantis Hexagone in Colmar?
A VT member wrote the following comment about visiting Colmar:
Musee d'Unterlinden by tini58de
This museum is set in an old gothic monestary. This is such a fantastic environment, especially since the most well known exhibition is the "Isenheimer Altar" by Grünewald dating back to the 16th century! We also admired the most sophisticated keys and locks there and much more.... It is a museum to spend hours inside....