Brunelleschi's dome can be located in the Cathedral of Santa Maria del Fiore, Italy. The dome covers Florence cathedral and when built, was the biggest dome in the world. This famous dome was built when the Opera del Duomo announced a public competition for the construction of the dome with a big prize attached to it. Brunelleschi and Ghiberti although were arch-rivals, worked side by side in the construction of the dome which began in August 1420.

The Dome has a diameter of 45.5 meters and has resisted lightning, earthquakes, over the centuries. The dome remains a masterpiece of beauty and engineering, a pioneering construction for its time, and in many ways remains unmatched.