This NYT article is so interesting, with pictures of the sketches found on walls beneath the Medici Chapels in Florence. It looks like there will be ticketed, limited access but wow, what a treat!
I've gifted the article. It's my first "gifting" so someone needs to let me know if I've not done it correctly and you hit a paywall.
***Gifted articles only last for 30 days. CL regifted Nov 26 so scroll to the bottom. If you are reading this after Dec, message me and I’ll regift!