In northern Egypt, underwater and aerial drones reveal the archaeological sites of two ancient, sunken cities at the mouth of the Nile; the cities link to the river Delta, and researchers discover a remarkable funerary treasure found in Tanis.

The flooding of the Nile impacted ancient Egyptian civilization by fertilizing the earth and providing water to the canals used to construct the pyramids; a LiDar scan reveals a canal near Saqqarah; underwater drones explore the pyramid of Hawara.

Built on the shores of the Nile, Luxor houses the greatest monuments of the New Kingdom: the Karnak complex, the Temple of Denderah and the castle of Ramses II; examining the treasures engulfed by the Nile and the daily lives of ancient Egyptians.

Elephantine Island houses the oldest Nilometer, which measured the water level; scientists examine how the Nile was used to carry construction stones, and to transport pieces of temples and pharaoh's statues downriver from the stone quarries.