MADRID -- Spain's King Felipe VI is inaugurating a major exhibition for the 500th anniversary of Dutch artist Hieronymus Bosch that is being billed as a once-in-a-lifetime review of the Renaissance master.

Bosch's work, with its monstrous, apocalyptic scenes depicting man's struggle against temptation juxtaposed with idyllic scenes of paradise, has long fascinated art lovers but rarely has so much of his work been brought together under one roof.

The exposition centers on his triptychs, most notably "The Garden of Earthly Delights," ''The Haywain" and "The Temptations of Saint Anthony." It features 29 paintings and drawings, constituting 75 percent of his surviving works.

Felipe opened the exhibition at Madrid's Prado Museum on Monday with former Dutch queen, Princess Beatrix. It runs until Sept. 11.