Nantes has a wonderful Arts Museum, just beyond the Ducal Palace and in the middle of the old town. We visited twice in two days!
The building, on two floors, is beautiful
I loved the paintings by Paul Lazerges (1845-1902)
There are interesting paintings by Kandinsky (1866-1945) which I enjoyed, and I am ashamed to admit that I know very little about him.
This is a wonderful museum – do visit!
All the paintings by Georges de La Tour