A mountain-top fortress built to protect the faithful. Biblical monsters sent to test humankind. Secret wartime weapons wielded in the name of religion. Hidden codes that may reveal the end of the world. For thousands of years, cultures around the world have been captivated by sacred objects, ideas, rituals, and places – wonders meant to inspire, mystify, and sometimes even terrify. HOLY MARVELS WITH DENNIS QUAID digs deep into the remarkable stories and the unforgettable adventures to uncover the truth behind some of history’s most enduring legends.