Ancient tunnels beneath famous Hagia Sophia explored after 3,000 tons of debris cleared
Revealing 1,600-year-old Roman passages beneath Istanbul, archaeologists removed roughly 3,000 tons of debris from Hagia Sophia's underground tunnels recently.

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Ancient tunnels beneath famous Hagia Sophia explored after 3,000 tons of debris cleared (opens Fox News in a new tab)
Revealing 1,600-year-old Roman passages beneath Istanbul, archaeologists removed roughly 3,000 tons of debris from Hagia Sophia's underground tunnels recently.

