I've been online getting ready to purchase my FirenzeCard and clicked on the official Firenze Tourism site. I see that there is the opportunity to schedule a tour to see the Duomo vault mosaics up close during the construction via a special visitor's route.
Has anyone done this? I think it would be interesting, but don't know where I'd squeeze this into my already jammed itinerary on the only two days they offer this (11am English tour Fri/Sat). 10 people max 65Euros.
https://tickets.duomo.firenze.it/en/store#/en/buy?skugroup_id=1426