Museum of Opera of Saint Maria of Fiore, Florence

It's included with the ticket if you go up the tower so you there's no harm in checking the museum as well. They have some interesting stuff about how the dome was built and you can check a lot of statues up close. There is a nice view of the dome at the top floor. The bag storage was quick.

An amazing portal into the past - we loved the entire exhibition. There’s a lot to see and you can take a nice photo of the dome from the top floor. Make sure you go through all the rooms - even though we followed the directions, we still found rooms that we didn’t check out, after circling around again. Buy the full ticket to check out other places too - way cheaper than paying for every place separately. Other than the exhibition - the place wasn’t crowded, there’s a nice souvenir shop, it’s cool inside (which was great compared to the outside heat), and it has clean toilets.