Beginning at the Gargas Caves, France—humankind’s first house of worship?—this program seeks to understand why our ancestors began to believe in one or more divinities and how, through the ages, different cultures have expressed that belief. Great mysteries such as death and nature are considered as factors in the evolution of religious faith as Robert Winston, archaeologist Jean Clottes, The British Museum’s Irving Finkel, and others discuss animism, Hinduism, Buddhism, and Zoroastrianism. The Pyramid of the Moon, Teotihuacán; Bambalapitiya Temple, Sri Lanka; the Great Stupa, Anuradhapura; and the Atashgah fire temple, Isfahan, are just some of the sacred sites visited. A BBCW Production. (60 minutes)