Giotto broke away from flat, stiff medieval figures and gave his people real weight and feeling, paving the way for the Renaissance. Here the oldest of the three kings kneels to greet the Christ Child against a shining gold sky.
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The Adoration of the Magi
Giotto · The Metropolitan Museum of Art
Giotto di Bondone, possibly ca. 1320. The Metropolitan Museum of Art, Open Access (public domain).