The 414-step climb up the cathedral's 85m-tall campanile, begun by Giotto in 1334, rewards with a staggering city panorama. The first tier of bas-reliefs around the base of its elaborate Gothic facade are copies of those carved by Pisano depicting the Creation of Man and the attività umane (arts and industries). Those on the second tier depict the planets, the cardinal virtues, the arts and the seven sacraments. The sculpted Prophets and Sibyls in the upper-storey niches are copies of works by Donatello and others.
