Historical tools and equipment used on building sites (tackles, pulleys, levels, compasses, slings, brick molds, ropes and a cart) mainly from the 15th century, showing how construction work was carried out at the time Brunelleschi’s dome was built. For his daring construction of the dome Filippo Brunelleschi had to design a series of ingenious machines to transport and raise the materials required. These were in addition to the tools and equipment already in common use, some of which are on display here to illustrate the building work started in 1420. The tackles and pulleys were particularly important to raise the stones.