Good luck putting candles out there
These are what look like candelabra and are situated all around the Duomo in Florence. If you look at the photo from two days ago, you’ll find there’s an overhead shot of them. If they are for candles, I’d hate to be the guy who had to put new candles out there, let alone have to light them.
If you have the chance to visit the Duomo, climb the 463 stairs to see this view. It is spectacular.