The ancient Sumerian city of Nippur is one of the richest archaeological sites on Earth, but decades of conflict in Iraq have prevented its exploration; now, experts gain rare access to finally uncover the mysteries behind the most sacred city of Mesopotamia.

The ancient city of Abydos contains some of the oldest Egyptian tombs and a buried temple linked to the Cult of Osiris, a mysterious death cult; now, archaeologists use cutting-edge drone imaging to investigate long-hidden secrets behind the first pharaohs.