The sprawling city of Persepolis was the capital of the Persian Empire, the first imperial civilization that conquered most of the known ancient world; now, experts use advanced forensic archaeology to reveal the secrets behind Persia's mysterious and dominating metropolis. 

The decapitated statues of Mount Nemrut in southeastern Turkey and their eventual destruction have mystified experts for centuries; now, archaeologists decode cryptic inscriptions and use innovative geophysical analysis to reveal the mystery behind this ancient megastructure.