At a time when the world was politically divided into East and West, Magnum photographer Harry Gruyaert's quest for light and sensuality led him to capture the colors of two very different worlds: the vibrant glitziness of Las Vegas and Los Angeles in 1981, and the austere restraint of Moscow in 1989 just before the fall of the Soviet Union. The resulting photographs form a striking record of a remarkable era. Including an essay by writer,...