Zotero has an item type for artwork: Zotero and Images - Zotero @ the WSU Libraries - LibGuides at Washington State University
I just went to wikiart’s entry for Renoir’s The Thinker and clicked the Safari Zotero browser extension button and the following entry was added to Zotero automatically:

When I added the “author” and date the cite key automatically updated:

The cite key provides a unique reference across the entire Zotero DB. If I added another item Renoir painted in 1877 the new cite key would be “renoir1877a” etc.
Note this is just me trying this out as an experiment for you, YMMV. Also I’m using the Better BibTex plugin which adds the cite key and it requires a bit of setup and config to put together.
But it does show there is a method for at least storing these in a structured way in an external tool.
Another possibility is to use YML front matter structured fields and the Dataview plugin to run searches across your files.
Ex: (note title: Renoir - The Thinker (1877)
, or 1877 Renoir - The Thinker
or whatever)
---
artist: Auguste Renoir
title: The Thinker
year: 1877
museumVisited: Foo
whenVisited: 12/2019
---

This is why I liked it blah blah blah...
Then you can write a query perhaps like this:
table museumVisited as museum, whenVisited as visited
from ""
sort whenVisited asc
Which would generate a table containing the note name in the first column (hence my titling recommendation above) and then the museum and date visited.
There’s probably other ways as well, these are just a couple that pop out.