1,600-Year-Old Underground Tunnels Discovered Under Hagia Sophia During Restoration
Seven underground tunnels dating back approximately 1,600 years have been discovered under Hagia Sophia during ongoing restoration works, offering a rare glimpse into the monument's early Byzantine period infrastructure, while Minister of Culture and Tourism Mehmet Nuri Ersoy confirmed that preservation works in both Hagia Sophia and the Blue Mosque are progressing under strict scientific supervision.