the brickwork of the dome
![Image](https://www.geogebra.org/resource/RQywpZHy/Jqmuagc1f7eanCsA/material-RQywpZHy.png)
upstairs between the two domes
An experience you shouldn't miss when you're in Florence is to climb upstairs unto the lantarn between the two domes.
![Image](https://www.geogebra.org/resource/urYqpBZM/2V6YGqtXoFS4oWgc/material-urYqpBZM.png)
fish bone
While climbing you can clearly see that Brunelleschi placed the bricks as a herringbone. It's another trick to hold the dome together.
![Image](https://www.geogebra.org/resource/fEv9uq9u/orMvxTyHLXVgdm3e/material-fEv9uq9u.png)
experimenting the experiment
In 2014 architect Massimo Ricci builded a model of Brunellsechi's dome at a scale of 1:5. He didn't finish his dome so people got a better view on the building techniques.
And he didn't construct stone and wooden rings and didn't have to lift the building material 90 m high ...
There's a youtube film on model_Ricci.
![Image](https://www.geogebra.org/resource/M5AcpjyN/YbHjbknXjDQPtTM8/material-M5AcpjyN.png)