Go look at some of these, you uncultured savages. https://www.bing.com/search?q=museum virtual tours&form=M401DI&OCID=M401DI
Uffizi doesn't seem to work, but that's a really good one if you can figure it out. Musee d'Orsay is really good and has a lot. Vatican one has some cool stuff, but it's probably about 1/1000th of what you can see there.
The modern art section at the Vatican is like if Roseanne was in the Victoria’s Secret fashion show.