Brunelleschi's Dome

By all accounts, Filippo Brunelleschi, goldsmith and clockmaker, was an unkempt, cantankerous, and suspicious man-even by the generous standards according to which artists were judged in fifteenth-century Florence. He also designed and erected a dome over the cathedral of Santa Maria del Fiore-a feat of architectural daring that we continue to marvel at today-thus securing himself a place among the most formidable geniuses of the Renaissance. At first denounced as a madman, Brunelleschi literally reinvented the field of architecture amid plagues, wars, and political feuds to raise seventy million pounds of metal, wood, and marble hundreds of feet in the air.