The Stone of the Sun, also known as the Aztec Calendar Stone, is a massive monolithic sculpture created by the Aztecs in the late 15th century. This iconic artifact features intricate carvings that represent various aspects of Aztec cosmology, including the sun god Huitzilopochtli and the five worlds or suns that preceded the current era. Its significance goes beyond mere decoration; it served as a crucial tool for understanding time and the cycles of the universe in Mesoamerican civilization.