the brickwork of the dome

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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.
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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.
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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.
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