License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Pietro Santi Bartoli. A giant heaving a boulder at center, other giants to left and right struggling and recoiling against impending boulders, nude figures climbing rocks and struggling in the background, from "Giove che fulmina li giganti", after the frescoes on the ceiling of the Sala dei Giganti designed by Giulio Romano for the Palazzo del Te, Mantua, ca. 1680. The Metropolitan Museum of Art.