The Walls of Constantinople stand as one of history’s greatest feats of military engineering, an impenetrable fortress that ...

Amid the constant military campaigns, there was also the “Plague of Justinian,” one of history’s worst pandemics, that ...

Altug has mapped the location of 158 Byzantine cisterns, and believes there were thousands in ancient Constantinople. "We don't know where we are on this work, because there are many other ...

Once known as Byzantium, it was named Constantinople in honor of Constantine, the Roman emperor who, around AD 330, as ancient Rome was falling, moved the capital to the less chaotic east.

Altug has mapped the location of 158 Byzantine cisterns, and believes there were thousands in ancient Constantinople. "We don't know where we are on this work, because there are many other ...

"It moves uniformly during the earthquake and never collapses." Altug has mapped the location of 158 Byzantine cisterns, and believes there were thousands in ancient Constantinople.

OZGUMUS: 'Cause ancient Constantinople is full of those substructures. BOUSCAREN: We visit the ruins of what may have been a bathhouse, now framing the boiler room of a legal office.

Below the surface of the sprawling, modern metropolis is a different world. Archaeologists are gaining insights into the city's ancient past by examining the basements of ordinary buildings.