Unearthed

Palmyra: pearl of the Syrian desert. Why was this city built here, and how did its inhabitants survive? Years after its destruction by ISIS, experts return to the site and use CGI reconstruction to reveal the secrets of Palmyra's ancient engineers.

The Dendera Temple is one of the best-preserved temples in all of Egypt. Now, experts decipher its mystifying zodiac images and uncover the ceremonial events that took place at this sacred site, and stunning CGI rebuilds this grand complex in its prime.

The magnificent tomb of Alexander the Great -- one of history's greatest icons -- mysteriously vanishes and becomes a legend. Now, using stunning CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

In 373 BCE, the Greek city of Helike vanished. Now, archaeologists believe they've found the ruins of the great lost metropolis. Using CGI, experts recreate the city's final moments and reveal its links to the greatest lost land of all -- Atlantis.

The Avenue of the Sphinxes: This ancient wonder has now been unearthed in the biggest excavation in Egyptian history. Who built this magnificent structure? And what was its purpose? Using cutting-edge CGI, we reveal the hidden secrets of the sphinxes.

The lost city of Olous: A great metropolis submerged in the Mediterranean. Now, archaeologists uncover its secrets using pioneering technology and CGI reconstruction. How did this city survive against all odds? And what finally caused the city to sink?