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Three-D scanning is used to explore the Great Pyramid of Giza and the first pyramid ever built, a hidden Russian fortress and a well deep in the rock below the Arabic citadel of Saladin.

Ancient Invisible Cities

Cairo

Uncovering the hidden secrets of Athens, from the buildings on the Acropolis to silver mines and quarries.

Athens

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Professor Darius Arya explores three cities of the ancient world -- Cairo, Athens and Istanbul -- through 3D scans.

S1 E2 | Cairo