Is the Borghese Gallery closed in mid November or do they just book tickets 1 month in advance?
Yes, they are open but only book 1 month in advance
Thank you!
Viator and the museum on-line site
avoid viator and sites like that, it is best to book through the official sites or if you want to take a 3rd party tour book through that site. All viator is is a consolidator they don't run any tours.
I recommend booking directly through the Borghese museum website