The other important job for the cathedral was to design two big round stained glass windows, each one 4.5 metres across. The cathedral had been built in the last century, but it had been left with a huge hole at the centre which needed a roof of some sort. An artist called Brunelleschi had come up with a brilliant plan for a dome, and the whole city was excited about getting it built. Workmen from every part of the town formed 8 gangs to build the 8 parts. As the dome grew, it had 8 large windows that needed glass. The best artists in Florence were asked to design them. Three of Uccello's designs were used but unfortunately one was smashed in 1828. The two that remain are "The Nativity" (The Birth of Jesus) and "The Resurrection" (Jesus rising from the dead).