For 1,400 years, two colossal figures of the Buddha overlooked the fertile Bamiyan Valley on the Silk Road in Afghanistan. Witness to a melting pot of passing monks, merchants, and armies, the Buddhas embodied the intersection of East and West, and their destruction by the Taliban in 2001 provoked international outrage. Llewelyn Morgan excavates the layers of meaning these vanished wonders hold for a fractured Afghanistan. Carved in the sixth and seventh centuries, the Buddhas represented a confluence of religious and artistic traditions from India, China, Central Asia, and Iran, and even...