Leaving a Hole That Could Not Be Covered
The crossing Arnolfo designed for Florence Cathedral was so vast that in his day and his successors’, no known technique could dome it. The great void stood open, weathered by wind and rain, for over a century, the whole city’s ache. Not until a century later did Brunelleschi step forward to solve the "impossible," and the sky of Florence was closed over by that great dome — and the Renaissance began.