Today, it remains the largest masonry dome ever built, a testament to what happens when ruthless political ambition meets uncompromising creative genius.

He designed two domes—a thick inner shell to support the weight and a lighter outer shell to protect it from the elements.

The story of the Florence Cathedral’s dome is as much a tale of political maneuvering and ego as it is about architectural genius. At the center of this drama was the , specifically Cosimo de' Medici, and the brilliant, hot-tempered goldsmith Filippo Brunelleschi . The Problem of the Void

They put their weight behind Brunelleschi, a man whose ideas sounded like madness to his peers. He proposed building a massive dome without any internal wooden scaffolding (centering), claiming he could make the structure support itself as it rose. Brunelleschi’s Innovations