The Sistine Chapel Ceiling — Michelangelo

The Sistine Chapel Ceiling is the most ambitious painted surface ever created, spanning over 500 square meters with more than 300 figures. Painted between 1508 and 1512 using vibrant fresco, each section tells a biblical story, culminating in the iconic Creation of Adam where God's hand reaches toward Adam's. Its complexity and scale surpass The Last Supper at #2, which covers only 4.6 by 8.8 meters and uses a less durable secco technique, making Michelangelo's fresco the pinnacle of monumental art.